72657314911 has 2 divisors, whose sum is σ = 72657314912. Its totient is φ = 72657314910.

The previous prime is 72657314909. The next prime is 72657314923. The reversal of 72657314911 is 11941375627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72657314911 - 2¹ = 72657314909 is a prime.

Together with 72657314909, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72657314941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36328657455 + 36328657456.

It is an arithmetic number, because the mean of its divisors is an integer number (36328657456).

Almost surely, 2^72657314911 is an apocalyptic number.

72657314911 is a deficient number, since it is larger than the sum of its proper divisors (1).

72657314911 is an equidigital number, since it uses as much as digits as its factorization.

72657314911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 46.

The spelling of 72657314911 in words is "seventy-two billion, six hundred fifty-seven million, three hundred fourteen thousand, nine hundred eleven".