78571572930 has 48 divisors (see below), whose sum is σ = 204819563520. Its totient is φ = 20897704224.

The previous prime is 78571572929. The next prime is 78571572943. The reversal of 78571572930 is 3927517587.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1105240 + ... + 1174179.

It is an arithmetic number, because the mean of its divisors is an integer number (4267074240).

Almost surely, 2^78571572930 is an apocalyptic number.

78571572930 is an abundant number, since it is smaller than the sum of its proper divisors (126247990590).

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

78571572930 is a wasteful number, since it uses less digits than its factorization.

78571572930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279815 (or 2279812 counting only the distinct ones).

The product of its (nonzero) digits is 3704400, while the sum is 54.

The spelling of 78571572930 in words is "seventy-eight billion, five hundred seventy-one million, five hundred seventy-two thousand, nine hundred thirty".