68831458320 has 80 divisors (see below), whose sum is σ = 213406430400. Its totient is φ = 18352568832.

The previous prime is 68831458309. The next prime is 68831458379. The reversal of 68831458320 is 2385413886.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 68831458320.

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, 2363206 + ... + 2392154.

It is an arithmetic number, because the mean of its divisors is an integer number (2667580380).

Almost surely, 2^68831458320 is an apocalyptic number.

68831458320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68831458320 is an abundant number, since it is smaller than the sum of its proper divisors (144574972080).

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

68831458320 is a wasteful number, since it uses less digits than its factorization.

68831458320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38872 (or 38866 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 68831458320 in words is "sixty-eight billion, eight hundred thirty-one million, four hundred fifty-eight thousand, three hundred twenty".