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868537667704 = 23721173505219
BaseRepresentation
bin11001010001110001110…
…00010001000001111000
310002000211212212000001211
430220320320101001320
5103212231120331304
61503000052252504
7116515113236140
oct14507070210170
93060755760054
10868537667704
11305387963983
121203b3611134
1363b9745cb35
1430074a81920
15178d5349204
hexca38e11078

868537667704 has 32 divisors (see below), whose sum is σ = 1869972796800. Its totient is φ = 370466298720.

The previous prime is 868537667651. The next prime is 868537667717. The reversal of 868537667704 is 407766735868.

It is a self number, because there is not a number n which added to its sum of digits gives 868537667704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36740794 + ... + 36764425.

It is an arithmetic number, because the mean of its divisors is an integer number (58436649900).

Almost surely, 2868537667704 is an apocalyptic number.

It is an amenable number.

868537667704 is an abundant number, since it is smaller than the sum of its proper divisors (1001435129096).

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

868537667704 is a wasteful number, since it uses less digits than its factorization.

868537667704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73505443 (or 73505439 counting only the distinct ones).

The product of its (nonzero) digits is 284497920, while the sum is 67.

The spelling of 868537667704 in words is "eight hundred sixty-eight billion, five hundred thirty-seven million, six hundred sixty-seven thousand, seven hundred four".

Divisors: 1 2 4 7 8 14 28 56 211 422 844 1477 1688 2954 5908 11816 73505219 147010438 294020876 514536533 588041752 1029073066 2058146132 4116292264 15509601209 31019202418 62038404836 108567208463 124076809672 217134416926 434268833852 868537667704