76620207172464 has 40 divisors (see below), whose sum is σ = 219928372440720. Its totient is φ = 25540069057344.

The previous prime is 76620207172427. The next prime is 76620207172547. The reversal of 76620207172464 is 46427170202667.

76620207172464 is a `hidden beast` number, since 7 + 6 + 6 + 2 + 0 + 2 + 0 + 7 + 172 + 464 = 666.

It is a super-2 number, since 2×76620207172464² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 76620207172464.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88680794907 + ... + 88680795770.

It is an arithmetic number, because the mean of its divisors is an integer number (5498209311018).

Almost surely, 2^{76620207172464} is an apocalyptic number.

It is an amenable number.

76620207172464 is an abundant number, since it is smaller than the sum of its proper divisors (143308165268256).

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

76620207172464 is a wasteful number, since it uses less digits than its factorization.

76620207172464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177361590694 (or 177361590682 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 54.

The spelling of 76620207172464 in words is "seventy-six trillion, six hundred twenty billion, two hundred seven million, one hundred seventy-two thousand, four hundred sixty-four".