36644604725 has 12 divisors (see below), whose sum is σ = 46184218500. Its totient is φ = 28835097600.

The previous prime is 36644604697. The next prime is 36644604793. The reversal of 36644604725 is 52740644663.

It can be written as a sum of positive squares in 6 ways, for example, as 11978645809 + 24665958916 = 109447^2 + 157054^2 .

It is not a de Polignac number, because 36644604725 - 2¹⁴ = 36644588341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36644604725.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12013100 + ... + 12016149.

It is an arithmetic number, because the mean of its divisors is an integer number (3848684875).

Almost surely, 2^36644604725 is an apocalyptic number.

It is an amenable number.

36644604725 is a deficient number, since it is larger than the sum of its proper divisors (9539613775).

36644604725 is a wasteful number, since it uses less digits than its factorization.

36644604725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24029320 (or 24029315 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 47.

The spelling of 36644604725 in words is "thirty-six billion, six hundred forty-four million, six hundred four thousand, seven hundred twenty-five".