72112664377 has 16 divisors (see below), whose sum is σ = 79331954688. Its totient is φ = 65138823360.

The previous prime is 72112664363. The next prime is 72112664389. The reversal of 72112664377 is 77346621127.

It is not a de Polignac number, because 72112664377 - 2⁷ = 72112664249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72112664347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127252 + ... + 400522.

It is an arithmetic number, because the mean of its divisors is an integer number (4958247168).

Almost surely, 2^72112664377 is an apocalyptic number.

It is an amenable number.

72112664377 is a deficient number, since it is larger than the sum of its proper divisors (7219290311).

72112664377 is a wasteful number, since it uses less digits than its factorization.

72112664377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273720.

The product of its digits is 592704, while the sum is 46.

The spelling of 72112664377 in words is "seventy-two billion, one hundred twelve million, six hundred sixty-four thousand, three hundred seventy-seven".