72496653377 has 2 divisors, whose sum is σ = 72496653378. Its totient is φ = 72496653376.

The previous prime is 72496653329. The next prime is 72496653379. The reversal of 72496653377 is 77335669427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49603752961 + 22892900416 = 222719^2 + 151304^2 .

It is an emirp because it is prime and its reverse (77335669427) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72496653377 is a prime.

Together with 72496653379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72496653379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36248326688 + 36248326689.

It is an arithmetic number, because the mean of its divisors is an integer number (36248326689).

Almost surely, 2^72496653377 is an apocalyptic number.

It is an amenable number.

72496653377 is a deficient number, since it is larger than the sum of its proper divisors (1).

72496653377 is an equidigital number, since it uses as much as digits as its factorization.

72496653377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40007520, while the sum is 59.

The spelling of 72496653377 in words is "seventy-two billion, four hundred ninety-six million, six hundred fifty-three thousand, three hundred seventy-seven".