20504624612 has 24 divisors (see below), whose sum is σ = 36173350752. Its totient is φ = 10169452800.

The previous prime is 20504624597. The next prime is 20504624617. The reversal of 20504624612 is 21642640502.

It is not an unprimeable number, because it can be changed into a prime (20504624617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1351187 + ... + 1366277.

It is an arithmetic number, because the mean of its divisors is an integer number (1507222948).

Almost surely, 2^20504624612 is an apocalyptic number.

It is an amenable number.

20504624612 is a deficient number, since it is larger than the sum of its proper divisors (15668726140).

20504624612 is a wasteful number, since it uses less digits than its factorization.

20504624612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17819 (or 17817 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 20504624612 in words is "twenty billion, five hundred four million, six hundred twenty-four thousand, six hundred twelve".