72287873279 has 16 divisors (see below), whose sum is σ = 74629900800. Its totient is φ = 69980193024.

The previous prime is 72287873267. The next prime is 72287873303. The reversal of 72287873279 is 97237878227.

It is a cyclic number.

It is not a de Polignac number, because 72287873279 - 2¹⁶ = 72287807743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72287873209) 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, 10660112 + ... + 10666890.

It is an arithmetic number, because the mean of its divisors is an integer number (4664368800).

Almost surely, 2^72287873279 is an apocalyptic number.

72287873279 is a deficient number, since it is larger than the sum of its proper divisors (2342027521).

72287873279 is a wasteful number, since it uses less digits than its factorization.

72287873279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9262.

The product of its digits is 33191424, while the sum is 62.

The spelling of 72287873279 in words is "seventy-two billion, two hundred eighty-seven million, eight hundred seventy-three thousand, two hundred seventy-nine".