74603625345 has 32 divisors (see below), whose sum is σ = 137202076800. Its totient is φ = 38416577472.

The previous prime is 74603625337. The next prime is 74603625373. The reversal of 74603625345 is 54352630647.

74603625345 is a `hidden beast` number, since 7 + 4 + 603 + 6 + 2 + 5 + 34 + 5 = 666.

It is not a de Polignac number, because 74603625345 - 2³ = 74603625337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 74603625345.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9524007 + ... + 9531836.

It is an arithmetic number, because the mean of its divisors is an integer number (4287564900).

Almost surely, 2^74603625345 is an apocalyptic number.

It is an amenable number.

74603625345 is a deficient number, since it is larger than the sum of its proper divisors (62598451455).

74603625345 is a wasteful number, since it uses less digits than its factorization.

74603625345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19055886 (or 19055880 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 45.

The spelling of 74603625345 in words is "seventy-four billion, six hundred three million, six hundred twenty-five thousand, three hundred forty-five".