78889533522 has 16 divisors (see below), whose sum is σ = 162868714752. Its totient is φ = 25448236560.

The previous prime is 78889533451. The next prime is 78889533533. The reversal of 78889533522 is 22533598887.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212068453 + ... + 212068824.

It is an arithmetic number, because the mean of its divisors is an integer number (10179294672).

Almost surely, 2^78889533522 is an apocalyptic number.

78889533522 is an abundant number, since it is smaller than the sum of its proper divisors (83979181230).

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

78889533522 is a wasteful number, since it uses less digits than its factorization.

78889533522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424137313.

The product of its digits is 29030400, while the sum is 60.

The spelling of 78889533522 in words is "seventy-eight billion, eight hundred eighty-nine million, five hundred thirty-three thousand, five hundred twenty-two".