3638495118 has 16 divisors (see below), whose sum is σ = 7277597136. Its totient is φ = 1212730560.

The previous prime is 3638495071. The next prime is 3638495137. The reversal of 3638495118 is 8115948363.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101730 + ... + 132762.

It is an arithmetic number, because the mean of its divisors is an integer number (454849821).

Almost surely, 2^3638495118 is an apocalyptic number.

3638495118 is an abundant number, since it is smaller than the sum of its proper divisors (3639102018).

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

3638495118 is a wasteful number, since it uses less digits than its factorization.

3638495118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50579.

The product of its digits is 622080, while the sum is 48.

The square root of 3638495118 is about 60319.9396385640. The cubic root of 3638495118 is about 1538.0623178399.

The spelling of 3638495118 in words is "three billion, six hundred thirty-eight million, four hundred ninety-five thousand, one hundred eighteen".