82560178780 has 24 divisors (see below), whose sum is σ = 173393015040. Its totient is φ = 33020902080.

The previous prime is 82560178721. The next prime is 82560178783. The reversal of 82560178780 is 8787106528.

It is a happy number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82560178783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21445 + ... + 406915.

It is an arithmetic number, because the mean of its divisors is an integer number (7224708960).

Almost surely, 2^82560178780 is an apocalyptic number.

It is an amenable number.

82560178780 is an abundant number, since it is smaller than the sum of its proper divisors (90832836260).

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

82560178780 is a wasteful number, since it uses less digits than its factorization.

82560178780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396189 (or 396187 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 52.

The spelling of 82560178780 in words is "eighty-two billion, five hundred sixty million, one hundred seventy-eight thousand, seven hundred eighty".