68908907500 has 60 divisors (see below), whose sum is σ = 151405328536. Its totient is φ = 27432720000.

The previous prime is 68908907491. The next prime is 68908907527. The reversal of 68908907500 is 570980986.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 462184 + ... + 592816.

Almost surely, 2^68908907500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68908907500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75702664268).

68908907500 is an abundant number, since it is smaller than the sum of its proper divisors (82496421036).

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

68908907500 is a wasteful number, since it uses less digits than its factorization.

68908907500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130868 (or 130851 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 68908907500 in words is "sixty-eight billion, nine hundred eight million, nine hundred seven thousand, five hundred".