3638142976 has 48 divisors (see below), whose sum is σ = 7834144500. Its totient is φ = 1679130624.

The previous prime is 3638142943. The next prime is 3638143001. The reversal of 3638142976 is 6792418363.

It can be written as a sum of positive squares in 2 ways, for example, as 3600000000 + 38142976 = 60000^2 + 6176^2 .

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, 41701 + ... + 94948.

Almost surely, 2^3638142976 is an apocalyptic number.

It is an amenable number.

3638142976 is an abundant number, since it is smaller than the sum of its proper divisors (4196001524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3638142976 is a wasteful number, since it uses less digits than its factorization.

3638142976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136684 (or 136664 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The square root of 3638142976 is about 60317.0206160749. The cubic root of 3638142976 is about 1538.0126971591.

It can be divided in two parts, 36 and 38142976, that multiplied together give a square (1373147136 = 37056²).

The spelling of 3638142976 in words is "three billion, six hundred thirty-eight million, one hundred forty-two thousand, nine hundred seventy-six".