78459930372 has 24 divisors (see below), whose sum is σ = 183305814496. Its totient is φ = 26120075328.

The previous prime is 78459930359. The next prime is 78459930397. The reversal of 78459930372 is 27303995487.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4144513 + ... + 4163400.

Almost surely, 2^78459930372 is an apocalyptic number.

It is an amenable number.

78459930372 is an abundant number, since it is smaller than the sum of its proper divisors (104845884124).

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

78459930372 is a wasteful number, since it uses less digits than its factorization.

78459930372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308707 (or 8308705 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 78459930372 in words is "seventy-eight billion, four hundred fifty-nine million, nine hundred thirty thousand, three hundred seventy-two".