68298928720 has 160 divisors (see below), whose sum is σ = 181357035264. Its totient is φ = 23678054400.

The previous prime is 68298928693. The next prime is 68298928751. The reversal of 68298928720 is 2782989286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6329730 + ... + 6340510.

Almost surely, 2^68298928720 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 68298928720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90678517632).

68298928720 is an abundant number, since it is smaller than the sum of its proper divisors (113058106544).

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

68298928720 is a wasteful number, since it uses less digits than its factorization.

68298928720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11141 (or 11135 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 61.

The spelling of 68298928720 in words is "sixty-eight billion, two hundred ninety-eight million, nine hundred twenty-eight thousand, seven hundred twenty".