72316324635 has 32 divisors (see below), whose sum is σ = 118359567360. Its totient is φ = 37686885888.

The previous prime is 72316324523. The next prime is 72316324637. The reversal of 72316324635 is 53642361327.

It is not a de Polignac number, because 72316324635 - 2¹¹ = 72316322587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72316324637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 353539 + ... + 519251.

It is an arithmetic number, because the mean of its divisors is an integer number (3698736480).

Almost surely, 2^72316324635 is an apocalyptic number.

72316324635 is a deficient number, since it is larger than the sum of its proper divisors (46043242725).

72316324635 is a wasteful number, since it uses less digits than its factorization.

72316324635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166387.

The product of its digits is 544320, while the sum is 42.

The spelling of 72316324635 in words is "seventy-two billion, three hundred sixteen million, three hundred twenty-four thousand, six hundred thirty-five".