74456803920 has 80 divisors (see below), whose sum is σ = 230919595200. Its totient is φ = 19846244352.

The previous prime is 74456803877. The next prime is 74456803933. The reversal of 74456803920 is 2930865447.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 74456803920.

It is a congruent number.

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, 475656 + ... + 612504.

It is an arithmetic number, because the mean of its divisors is an integer number (2886494940).

Almost surely, 2^74456803920 is an apocalyptic number.

It is an amenable number.

74456803920 is an abundant number, since it is smaller than the sum of its proper divisors (156462791280).

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

74456803920 is a wasteful number, since it uses less digits than its factorization.

74456803920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139132 (or 139126 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 74456803920 in words is "seventy-four billion, four hundred fifty-six million, eight hundred three thousand, nine hundred twenty".