36638990265 has 16 divisors (see below), whose sum is σ = 59615985600. Its totient is φ = 19209594432.

The previous prime is 36638990261. The next prime is 36638990279. The reversal of 36638990265 is 56209983663.

It is not a de Polignac number, because 36638990265 - 2² = 36638990261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36638990261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20699110 + ... + 20700879.

It is an arithmetic number, because the mean of its divisors is an integer number (3725999100).

Almost surely, 2^36638990265 is an apocalyptic number.

It is an amenable number.

36638990265 is a deficient number, since it is larger than the sum of its proper divisors (22976995335).

36638990265 is a wasteful number, since it uses less digits than its factorization.

36638990265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41400056.

The product of its (nonzero) digits is 12597120, while the sum is 57.

It can be divided in two parts, 366389 and 90265, that added together give a palindrome (456654).

The spelling of 36638990265 in words is "thirty-six billion, six hundred thirty-eight million, nine hundred ninety thousand, two hundred sixty-five".