72394823300977 has 2 divisors, whose sum is σ = 72394823300978. Its totient is φ = 72394823300976.

The previous prime is 72394823300957. The next prime is 72394823300981. The reversal of 72394823300977 is 77900332849327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36388595031616 + 36006228269361 = 6032296^2 + 6000519^2 .

It is a cyclic number.

It is not a de Polignac number, because 72394823300977 - 2³⁵ = 72360463562609 is a prime.

It is not a weakly prime, because it can be changed into another prime (72394823300957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36197411650488 + 36197411650489.

It is an arithmetic number, because the mean of its divisors is an integer number (36197411650489).

Almost surely, 2^{72394823300977} is an apocalyptic number.

It is an amenable number.

72394823300977 is a deficient number, since it is larger than the sum of its proper divisors (1).

72394823300977 is an equidigital number, since it uses as much as digits as its factorization.

72394823300977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96018048, while the sum is 64.

The spelling of 72394823300977 in words is "seventy-two trillion, three hundred ninety-four billion, eight hundred twenty-three million, three hundred thousand, nine hundred seventy-seven".