4721873864 has 16 divisors (see below), whose sum is σ = 8944788300. Its totient is φ = 2336596992.

The previous prime is 4721873857. The next prime is 4721873887. The reversal of 4721873864 is 4683781274.

It can be written as a sum of positive squares in 2 ways, for example, as 4043688100 + 678185764 = 63590^2 + 26042^2 .

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, 3041669 + ... + 3043220.

Almost surely, 2^4721873864 is an apocalyptic number.

It is an amenable number.

4721873864 is a deficient number, since it is larger than the sum of its proper divisors (4222914436).

4721873864 is a wasteful number, since it uses less digits than its factorization.

4721873864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6084992 (or 6084988 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 50.

The square root of 4721873864 is about 68715.8923685053. The cubic root of 4721873864 is about 1677.6632601781.

The spelling of 4721873864 in words is "four billion, seven hundred twenty-one million, eight hundred seventy-three thousand, eight hundred sixty-four".