68067745902 has 80 divisors (see below), whose sum is σ = 166706553552. Its totient is φ = 20631283200.

The previous prime is 68067745871. The next prime is 68067745913. The reversal of 68067745902 is 20954776086.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 100099 + ... + 382302.

Almost surely, 2^68067745902 is an apocalyptic number.

68067745902 is an abundant number, since it is smaller than the sum of its proper divisors (98638807650).

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

68067745902 is a wasteful number, since it uses less digits than its factorization.

68067745902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482495 (or 482486 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 68067745902 in words is "sixty-eight billion, sixty-seven million, seven hundred forty-five thousand, nine hundred two".