72713817948356 has 48 divisors (see below), whose sum is σ = 137119925056128. Its totient is φ = 33540060960000.

The previous prime is 72713817948349. The next prime is 72713817948389. The reversal of 72713817948356 is 65384971831727.

It is a self number, because there is not a number n which added to its sum of digits gives 72713817948356.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1269616001 + ... + 1269673271.

It is an arithmetic number, because the mean of its divisors is an integer number (2856665105336).

Almost surely, 2^{72713817948356} is an apocalyptic number.

It is an amenable number.

72713817948356 is a deficient number, since it is larger than the sum of its proper divisors (64406107107772).

72713817948356 is a wasteful number, since it uses less digits than its factorization.

72713817948356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71532 (or 71530 counting only the distinct ones).

The product of its digits is 426746880, while the sum is 71.

The spelling of 72713817948356 in words is "seventy-two trillion, seven hundred thirteen billion, eight hundred seventeen million, nine hundred forty-eight thousand, three hundred fifty-six".