459716257921 has 2 divisors, whose sum is σ = 459716257922. Its totient is φ = 459716257920.

The previous prime is 459716257883. The next prime is 459716257933. The reversal of 459716257921 is 129752617954.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 379165303696 + 80550954225 = 615764^2 + 283815^2 .

It is a cyclic number.

It is not a de Polignac number, because 459716257921 - 2²⁵ = 459682703489 is a prime.

It is a super-2 number, since 2×459716257921² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (459716257951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229858128960 + 229858128961.

It is an arithmetic number, because the mean of its divisors is an integer number (229858128961).

Almost surely, 2^459716257921 is an apocalyptic number.

It is an amenable number.

459716257921 is a deficient number, since it is larger than the sum of its proper divisors (1).

459716257921 is an equidigital number, since it uses as much as digits as its factorization.

459716257921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9525600, while the sum is 58.

The spelling of 459716257921 in words is "four hundred fifty-nine billion, seven hundred sixteen million, two hundred fifty-seven thousand, nine hundred twenty-one".