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6881242421886 = 23721311543115793
BaseRepresentation
bin110010000100010101000…
…0000101001101001111110
3220100211200121121221022020
41210020222000221221332
51400220241030000021
622345111002301010
71310103413336100
oct144105200515176
926324617557266
106881242421886
112213355a54178
1293176a1b7766
133abb8a969751
1419b0a7d03570
15bdee48637c6
hex6422a029a7e

6881242421886 has 96 divisors (see below), whose sum is σ = 16142224589568. Its totient is φ = 1949779802880.

The previous prime is 6881242421869. The next prime is 6881242421891.

6881242421886 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59369206 + ... + 59484998.

It is an arithmetic number, because the mean of its divisors is an integer number (168148172808).

Almost surely, 26881242421886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6881242421886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8071112294784).

6881242421886 is an abundant number, since it is smaller than the sum of its proper divisors (9260982167682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6881242421886 is a wasteful number, since it uses less digits than its factorization.

6881242421886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117486 (or 117479 counting only the distinct ones).

The product of its digits is 18874368, while the sum is 60.

The spelling of 6881242421886 in words is "six trillion, eight hundred eighty-one billion, two hundred forty-two million, four hundred twenty-one thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 42 49 98 131 147 262 294 393 786 917 1543 1834 2751 3086 4629 5502 6419 9258 10801 12838 19257 21602 32403 38514 64806 75607 115793 151214 202133 226821 231586 347379 404266 453642 606399 694758 810551 1212798 1414931 1621102 2431653 2829862 4244793 4863306 5673857 8489586 9904517 11347714 15168883 17021571 19809034 29713551 30337766 34043142 45506649 59427102 91013298 106182181 178668599 212364362 318546543 357337198 536005797 637093086 743275267 1072011594 1250680193 1486550534 2229825801 2501360386 3752040579 4459651602 7504081158 8754761351 17509522702 23405586469 26264284053 46811172938 52528568106 70216759407 140433518814 163839105283 327678210566 491517315849 983034631698 1146873736981 2293747473962 3440621210943 6881242421886