68267036872 has 32 divisors (see below), whose sum is σ = 130201041600. Its totient is φ = 33547636800.

The previous prime is 68267036869. The next prime is 68267036923. The reversal of 68267036872 is 27863076286.

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, 575829 + ... + 684187.

It is an arithmetic number, because the mean of its divisors is an integer number (4068782550).

Almost surely, 2^68267036872 is an apocalyptic number.

It is an amenable number.

68267036872 is a deficient number, since it is larger than the sum of its proper divisors (61934004728).

68267036872 is a wasteful number, since it uses less digits than its factorization.

68267036872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109717 (or 109713 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 68267036872 in words is "sixty-eight billion, two hundred sixty-seven million, thirty-six thousand, eight hundred seventy-two".