74856420456 has 64 divisors (see below), whose sum is σ = 188337683520. Its totient is φ = 24792768000.

The previous prime is 74856420449. The next prime is 74856420481. The reversal of 74856420456 is 65402465847.

It is a junction number, because it is equal to n+sod(n) for n = 74856420399 and 74856420408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8311956 + ... + 8320956.

It is an arithmetic number, because the mean of its divisors is an integer number (2942776305).

Almost surely, 2^74856420456 is an apocalyptic number.

It is an amenable number.

74856420456 is an abundant number, since it is smaller than the sum of its proper divisors (113481263064).

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

74856420456 is a wasteful number, since it uses less digits than its factorization.

74856420456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11186 (or 11182 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 51.

The spelling of 74856420456 in words is "seventy-four billion, eight hundred fifty-six million, four hundred twenty thousand, four hundred fifty-six".