20877703972 has 36 divisors (see below), whose sum is σ = 37514534400. Its totient is φ = 10166386240.

The previous prime is 20877703967. The next prime is 20877703981. The reversal of 20877703972 is 27930777802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4348029 + ... + 4352827.

It is an arithmetic number, because the mean of its divisors is an integer number (1042070400).

Almost surely, 2^20877703972 is an apocalyptic number.

It is an amenable number.

20877703972 is a deficient number, since it is larger than the sum of its proper divisors (16636830428).

20877703972 is a wasteful number, since it uses less digits than its factorization.

20877703972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5532 (or 5489 counting only the distinct ones).

The product of its (nonzero) digits is 2074464, while the sum is 52.

The spelling of 20877703972 in words is "twenty billion, eight hundred seventy-seven million, seven hundred three thousand, nine hundred seventy-two".