18624694924 has 12 divisors (see below), whose sum is σ = 35556235848. Its totient is φ = 8465770400.

The previous prime is 18624694901. The next prime is 18624694931. The reversal of 18624694924 is 42949642681.

It is a super-2 number, since 2×18624694924² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211644217 + ... + 211644304.

It is an arithmetic number, because the mean of its divisors is an integer number (2963019654).

Almost surely, 2^18624694924 is an apocalyptic number.

It is an amenable number.

18624694924 is a deficient number, since it is larger than the sum of its proper divisors (16931540924).

18624694924 is a wasteful number, since it uses less digits than its factorization.

18624694924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423288536 (or 423288534 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 55.

The spelling of 18624694924 in words is "eighteen billion, six hundred twenty-four million, six hundred ninety-four thousand, nine hundred twenty-four".