76372921856 has 160 divisors (see below), whose sum is σ = 190892782080. Its totient is φ = 29655244800.

The previous prime is 76372921829. The next prime is 76372921901. The reversal of 76372921856 is 65812927367.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12257750 + ... + 12263978.

It is an arithmetic number, because the mean of its divisors is an integer number (1193079888).

Almost surely, 2^76372921856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76372921856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95446391040).

76372921856 is an abundant number, since it is smaller than the sum of its proper divisors (114519860224).

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

76372921856 is a wasteful number, since it uses less digits than its factorization.

76372921856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6576 (or 6560 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 56.

The spelling of 76372921856 in words is "seventy-six billion, three hundred seventy-two million, nine hundred twenty-one thousand, eight hundred fifty-six".