78715752380 has 12 divisors (see below), whose sum is σ = 165303080040. Its totient is φ = 31486300944.

The previous prime is 78715752361. The next prime is 78715752419. The reversal of 78715752380 is 8325751787.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1967893790 + ... + 1967893829.

It is an arithmetic number, because the mean of its divisors is an integer number (13775256670).

Almost surely, 2^78715752380 is an apocalyptic number.

It is an amenable number.

78715752380 is an abundant number, since it is smaller than the sum of its proper divisors (86587327660).

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

78715752380 is a wasteful number, since it uses less digits than its factorization.

78715752380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935787628 (or 3935787626 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 53.

The spelling of 78715752380 in words is "seventy-eight billion, seven hundred fifteen million, seven hundred fifty-two thousand, three hundred eighty".