3638964051 has 24 divisors (see below), whose sum is σ = 5446265760. Its totient is φ = 2338560000.

The previous prime is 3638964013. The next prime is 3638964059. The reversal of 3638964051 is 1504698363.

3638964051 is a `hidden beast` number, since 3 + 638 + 9 + 6 + 4 + 0 + 5 + 1 = 666.

It is not a de Polignac number, because 3638964051 - 2⁹ = 3638963539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3638963988 and 3638964006.

It is not an unprimeable number, because it can be changed into a prime (3638964059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156426 + ... + 178176.

It is an arithmetic number, because the mean of its divisors is an integer number (226927740).

Almost surely, 2^3638964051 is an apocalyptic number.

3638964051 is a deficient number, since it is larger than the sum of its proper divisors (1807301709).

3638964051 is a wasteful number, since it uses less digits than its factorization.

3638964051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22427 (or 22424 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 3638964051 is about 60323.8265613182. The cubic root of 3638964051 is about 1538.1283906869.

The spelling of 3638964051 in words is "three billion, six hundred thirty-eight million, nine hundred sixty-four thousand, fifty-one".