72707066347 has 16 divisors (see below), whose sum is σ = 75326944000. Its totient is φ = 70104683520.

The previous prime is 72707066329. The next prime is 72707066353. The reversal of 72707066347 is 74366070727.

It is a cyclic number.

It is not a de Polignac number, because 72707066347 - 2¹¹ = 72707064299 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 72707066347.

It is not an unprimeable number, because it can be changed into a prime (72707063347) 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, 22599283 + ... + 22602499.

It is an arithmetic number, because the mean of its divisors is an integer number (4707934000).

Almost surely, 2^72707066347 is an apocalyptic number.

72707066347 is a deficient number, since it is larger than the sum of its proper divisors (2619877653).

72707066347 is a wasteful number, since it uses less digits than its factorization.

72707066347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686.

The product of its (nonzero) digits is 2074464, while the sum is 49.

The spelling of 72707066347 in words is "seventy-two billion, seven hundred seven million, sixty-six thousand, three hundred forty-seven".