72720763271 has 8 divisors (see below), whose sum is σ = 78380661744. Its totient is φ = 67070292480.

The previous prime is 72720763249. The next prime is 72720763307. The reversal of 72720763271 is 17236702727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72720763271 - 2¹⁴ = 72720746887 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 (72720763211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2340890 + ... + 2371751.

It is an arithmetic number, because the mean of its divisors is an integer number (9797582718).

Almost surely, 2^72720763271 is an apocalyptic number.

72720763271 is a deficient number, since it is larger than the sum of its proper divisors (5659898473).

72720763271 is a wasteful number, since it uses less digits than its factorization.

72720763271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4713841.

The product of its (nonzero) digits is 345744, while the sum is 44.

The spelling of 72720763271 in words is "seventy-two billion, seven hundred twenty million, seven hundred sixty-three thousand, two hundred seventy-one".