72136606454735 has 16 divisors (see below), whose sum is σ = 91683210528000. Its totient is φ = 54298451237376.

The previous prime is 72136606454681. The next prime is 72136606454741. The reversal of 72136606454735 is 53745460663127.

It is a cyclic number.

It is not a de Polignac number, because 72136606454735 - 2²⁴ = 72136589677519 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126041660 + ... + 126612689.

It is an arithmetic number, because the mean of its divisors is an integer number (5730200658000).

Almost surely, 2^{72136606454735} is an apocalyptic number.

72136606454735 is a deficient number, since it is larger than the sum of its proper divisors (19546604073265).

72136606454735 is a wasteful number, since it uses less digits than its factorization.

72136606454735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252657730.

The product of its (nonzero) digits is 76204800, while the sum is 59.

The spelling of 72136606454735 in words is "seventy-two trillion, one hundred thirty-six billion, six hundred six million, four hundred fifty-four thousand, seven hundred thirty-five".