82789849464 has 64 divisors (see below), whose sum is σ = 236577123840. Its totient is φ = 23650773120.

The previous prime is 82789849453. The next prime is 82789849489. The reversal of 82789849464 is 46494898728.

It is a congruent number.

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, 1247997 + ... + 1312659.

It is an arithmetic number, because the mean of its divisors is an integer number (3696517560).

Almost surely, 2^82789849464 is an apocalyptic number.

82789849464 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

82789849464 is an abundant number, since it is smaller than the sum of its proper divisors (153787274376).

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

82789849464 is a wasteful number, since it uses less digits than its factorization.

82789849464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72300 (or 72296 counting only the distinct ones).

The product of its digits is 222953472, while the sum is 69.

The spelling of 82789849464 in words is "eighty-two billion, seven hundred eighty-nine million, eight hundred forty-nine thousand, four hundred sixty-four".