72964387327 has 4 divisors (see below), whose sum is σ = 78577032520. Its totient is φ = 67351742136.

The previous prime is 72964387319. The next prime is 72964387339. The reversal of 72964387327 is 72378346927.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72964387327 - 2³ = 72964387319 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 (72964387357) 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, 2806322577 + ... + 2806322602.

It is an arithmetic number, because the mean of its divisors is an integer number (19644258130).

Almost surely, 2^72964387327 is an apocalyptic number.

72964387327 is a deficient number, since it is larger than the sum of its proper divisors (5612645193).

72964387327 is a wasteful number, since it uses less digits than its factorization.

72964387327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5612645192.

The product of its digits is 21337344, while the sum is 58.

The spelling of 72964387327 in words is "seventy-two billion, nine hundred sixty-four million, three hundred eighty-seven thousand, three hundred twenty-seven".