74480373921 has 64 divisors (see below), whose sum is σ = 107575050240. Its totient is φ = 45726838080.

The previous prime is 74480373911. The next prime is 74480373941. The reversal of 74480373921 is 12937308447.

It is not a de Polignac number, because 74480373921 - 2¹¹ = 74480371873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74480373911) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48269076 + ... + 48270618.

It is an arithmetic number, because the mean of its divisors is an integer number (1680860160).

Almost surely, 2^74480373921 is an apocalyptic number.

74480373921 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

74480373921 is a deficient number, since it is larger than the sum of its proper divisors (33094676319).

74480373921 is a wasteful number, since it uses less digits than its factorization.

74480373921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 74480373921 in words is "seventy-four billion, four hundred eighty million, three hundred seventy-three thousand, nine hundred twenty-one".