78520320882 has 96 divisors (see below), whose sum is σ = 176923251648. Its totient is φ = 25149616128.

The previous prime is 78520320871. The next prime is 78520320883. The reversal of 78520320882 is 28802302587.

It is not an unprimeable number, because it can be changed into a prime (78520320883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25028818 + ... + 25031954.

It is an arithmetic number, because the mean of its divisors is an integer number (1842950538).

Almost surely, 2^78520320882 is an apocalyptic number.

78520320882 is an abundant number, since it is smaller than the sum of its proper divisors (98402930766).

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

78520320882 is a wasteful number, since it uses less digits than its factorization.

78520320882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704 (or 3701 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 78520320882 in words is "seventy-eight billion, five hundred twenty million, three hundred twenty thousand, eight hundred eighty-two".