78572215080 has 64 divisors (see below), whose sum is σ = 261907387200. Its totient is φ = 20952590400.

The previous prime is 78572215037. The next prime is 78572215103. The reversal of 78572215080 is 8051227587.

78572215080 is a `hidden beast` number, since 7 + 8 + 572 + 21 + 50 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 36374946 + ... + 36377105.

It is an arithmetic number, because the mean of its divisors is an integer number (4092302925).

Almost surely, 2^78572215080 is an apocalyptic number.

It is an amenable number.

78572215080 is an abundant number, since it is smaller than the sum of its proper divisors (183335172120).

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

78572215080 is a wasteful number, since it uses less digits than its factorization.

78572215080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72752071 (or 72752061 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The spelling of 78572215080 in words is "seventy-eight billion, five hundred seventy-two million, two hundred fifteen thousand, eighty".