68459540928 has 112 divisors (see below), whose sum is σ = 187142713344. Its totient is φ = 22063979520.

The previous prime is 68459540899. The next prime is 68459540939. The reversal of 68459540928 is 82904595486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7596201 + ... + 7605207.

Almost surely, 2^68459540928 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 68459540928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93571356672).

68459540928 is an abundant number, since it is smaller than the sum of its proper divisors (118683172416).

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

68459540928 is a wasteful number, since it uses less digits than its factorization.

68459540928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10330 (or 10320 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 60.

The spelling of 68459540928 in words is "sixty-eight billion, four hundred fifty-nine million, five hundred forty thousand, nine hundred twenty-eight".