36631503021 has 16 divisors (see below), whose sum is σ = 48967003008. Its totient is φ = 24358545600.

The previous prime is 36631502959. The next prime is 36631503031. The reversal of 36631503021 is 12030513663.

It is a happy number.

It is not a de Polignac number, because 36631503021 - 2⁷ = 36631502893 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 36631503021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36631503031) 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, 6742176 + ... + 6747606.

It is an arithmetic number, because the mean of its divisors is an integer number (3060437688).

Almost surely, 2^36631503021 is an apocalyptic number.

It is an amenable number.

36631503021 is a deficient number, since it is larger than the sum of its proper divisors (12335499987).

36631503021 is a wasteful number, since it uses less digits than its factorization.

36631503021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10772.

The product of its (nonzero) digits is 9720, while the sum is 30.

The spelling of 36631503021 in words is "thirty-six billion, six hundred thirty-one million, five hundred three thousand, twenty-one".