36643897504 has 24 divisors (see below), whose sum is σ = 72508892148. Its totient is φ = 18228940800.

The previous prime is 36643897489. The next prime is 36643897519. The reversal of 36643897504 is 40579834663.

It is an interprime number because it is at equal distance from previous prime (36643897489) and next prime (36643897519).

It can be written as a sum of positive squares in 2 ways, for example, as 24467216400 + 12176681104 = 156420^2 + 110348^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2900097 + ... + 2912704.

Almost surely, 2^36643897504 is an apocalyptic number.

It is an amenable number.

36643897504 is a deficient number, since it is larger than the sum of its proper divisors (35864994644).

36643897504 is a wasteful number, since it uses less digits than its factorization.

36643897504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5813008 (or 5813000 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 36643897504 in words is "thirty-six billion, six hundred forty-three million, eight hundred ninety-seven thousand, five hundred four".