20804923732 has 48 divisors (see below), whose sum is σ = 39033308160. Its totient is φ = 9684576000.

The previous prime is 20804923729. The next prime is 20804923801. The reversal of 20804923732 is 23732940802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382857 + ... + 433807.

It is an arithmetic number, because the mean of its divisors is an integer number (813193920).

Almost surely, 2^20804923732 is an apocalyptic number.

It is an amenable number.

20804923732 is a deficient number, since it is larger than the sum of its proper divisors (18228384428).

20804923732 is a wasteful number, since it uses less digits than its factorization.

20804923732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51112 (or 51110 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 20804923732 in words is "twenty billion, eight hundred four million, nine hundred twenty-three thousand, seven hundred thirty-two".