3951128164 has 27 divisors (see below), whose sum is σ = 7059301963. Its totient is φ = 1935020672.

The previous prime is 3951128149. The next prime is 3951128189. The reversal of 3951128164 is 4618211593.

The square root of 3951128164 is 62858.

It is a perfect power (a square), and thus also a powerful number.

3951128164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 451222564 + 3499905600 = 21242^2 + 59160^2 .

It is a super-2 number, since 2×3951128164² = 31222827536708021792, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (51840) is a multiple of the sum of its prime divisors (648).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6662652 + ... + 6663244.

Almost surely, 2^3951128164 is an apocalyptic number.

3951128164 is the 62858-th square number.

It is an amenable number.

3951128164 is a deficient number, since it is larger than the sum of its proper divisors (3108173799).

3951128164 is an frugal number, since it uses more digits than its factorization.

3951128164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296 (or 648 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The cubic root of 3951128164 is about 1580.9096086936.

The spelling of 3951128164 in words is "three billion, nine hundred fifty-one million, one hundred twenty-eight thousand, one hundred sixty-four".