20472124496 has 10 divisors (see below), whose sum is σ = 39664741242. Its totient is φ = 10236062240.

The previous prime is 20472124399. The next prime is 20472124507. The reversal of 20472124496 is 69442127402.

It can be written as a sum of positive squares in only one way, i.e., 11628602896 + 8843521600 = 107836^2 + 94040^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639753875 + ... + 639753906.

Almost surely, 2^20472124496 is an apocalyptic number.

It is an amenable number.

20472124496 is a deficient number, since it is larger than the sum of its proper divisors (19192616746).

20472124496 is a wasteful number, since it uses less digits than its factorization.

20472124496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279507789 (or 1279507783 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 20472124496 in words is "twenty billion, four hundred seventy-two million, one hundred twenty-four thousand, four hundred ninety-six".