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68289350088961 = 3835231487229267
BaseRepresentation
bin11111000011011110110100…
…11101000011100100000001
322221210101202020000102010001
433201233122131003210001
532422323042110321321
6401123405551040001
720245512520222111
oct1741573235034401
9287711666012101
1068289350088961
111a839394909871
1277aab25210001
132c14872a61431
1412c1317939041
157d656923cc91
hex3e1bda743901

68289350088961 has 16 divisors (see below), whose sum is σ = 68644996153344. Its totient is φ = 67934804391504.

The previous prime is 68289350088959. The next prime is 68289350089021. The reversal of 68289350088961 is 16988005398286.

68289350088961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 68289350088961 - 21 = 68289350088959 is a prime.

It is a super-2 number, since 2×682893500889612 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68289350088061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297744850 + ... + 297974116.

It is an arithmetic number, because the mean of its divisors is an integer number (4290312259584).

Almost surely, 268289350088961 is an apocalyptic number.

It is an amenable number.

68289350088961 is a deficient number, since it is larger than the sum of its proper divisors (355646064383).

68289350088961 is a wasteful number, since it uses less digits than its factorization.

68289350088961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231660.

The product of its (nonzero) digits is 358318080, while the sum is 73.

The spelling of 68289350088961 in words is "sixty-eight trillion, two hundred eighty-nine billion, three hundred fifty million, eighty-eight thousand, nine hundred sixty-one".

Divisors: 1 383 523 1487 200309 229267 569521 777701 87809261 119906641 297859483 340920029 45924243503 130572371107 178301175167 68289350088961