74445903620 has 24 divisors (see below), whose sum is σ = 170548797888. Its totient is φ = 27071237600.

The previous prime is 74445903619. The next prime is 74445903661. The reversal of 74445903620 is 2630954447.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169195016 + ... + 169195455.

It is an arithmetic number, because the mean of its divisors is an integer number (7106199912).

Almost surely, 2^74445903620 is an apocalyptic number.

It is an amenable number.

74445903620 is an abundant number, since it is smaller than the sum of its proper divisors (96102894268).

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

74445903620 is a wasteful number, since it uses less digits than its factorization.

74445903620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338390491 (or 338390489 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 74445903620 in words is "seventy-four billion, four hundred forty-five million, nine hundred three thousand, six hundred twenty".