72636673660534 has 32 divisors (see below), whose sum is σ = 113887378584000. Its totient is φ = 34700416450560.

The previous prime is 72636673660493. The next prime is 72636673660547. The reversal of 72636673660534 is 43506637663627.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47627254 + ... + 49128694.

It is an arithmetic number, because the mean of its divisors is an integer number (3558980580750).

Almost surely, 2^{72636673660534} is an apocalyptic number.

72636673660534 is a deficient number, since it is larger than the sum of its proper divisors (41250704923466).

72636673660534 is a wasteful number, since it uses less digits than its factorization.

72636673660534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510168.

The product of its (nonzero) digits is 411505920, while the sum is 64.

The spelling of 72636673660534 in words is "seventy-two trillion, six hundred thirty-six billion, six hundred seventy-three million, six hundred sixty thousand, five hundred thirty-four".