72615106673 has 32 divisors (see below), whose sum is σ = 78451338240. Its totient is φ = 67045366080.

The previous prime is 72615106657. The next prime is 72615106693. The reversal of 72615106673 is 37660151627.

It is not a de Polignac number, because 72615106673 - 2⁴ = 72615106657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72615106693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30625178 + ... + 30627548.

It is an arithmetic number, because the mean of its divisors is an integer number (2451604320).

Almost surely, 2^72615106673 is an apocalyptic number.

It is an amenable number.

72615106673 is a deficient number, since it is larger than the sum of its proper divisors (5836231567).

72615106673 is a wasteful number, since it uses less digits than its factorization.

72615106673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789.

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 72615106673 in words is "seventy-two billion, six hundred fifteen million, one hundred six thousand, six hundred seventy-three".