72327771179 has 4 divisors (see below), whose sum is σ = 74660925120. Its totient is φ = 69994617240.

The previous prime is 72327771157. The next prime is 72327771211. The reversal of 72327771179 is 97117772327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97117772327 = 1249 ⋅77756423.

It is a cyclic number.

It is not a de Polignac number, because 72327771179 - 2¹⁶ = 72327705643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72327771179.

It is not an unprimeable number, because it can be changed into a prime (72327771079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1166576924 + ... + 1166576985.

It is an arithmetic number, because the mean of its divisors is an integer number (18665231280).

Almost surely, 2^72327771179 is an apocalyptic number.

72327771179 is a deficient number, since it is larger than the sum of its proper divisors (2333153941).

72327771179 is a wasteful number, since it uses less digits than its factorization.

72327771179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333153940.

The product of its digits is 1815156, while the sum is 53.

The spelling of 72327771179 in words is "seventy-two billion, three hundred twenty-seven million, seven hundred seventy-one thousand, one hundred seventy-nine".