457247765917 has 2 divisors, whose sum is σ = 457247765918. Its totient is φ = 457247765916.

The previous prime is 457247765911. The next prime is 457247765941. The reversal of 457247765917 is 719567742754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323276393476 + 133971372441 = 568574^2 + 366021^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-457247765917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457247765911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228623882958 + 228623882959.

It is an arithmetic number, because the mean of its divisors is an integer number (228623882959).

Almost surely, 2^457247765917 is an apocalyptic number.

It is an amenable number.

457247765917 is a deficient number, since it is larger than the sum of its proper divisors (1).

457247765917 is an equidigital number, since it uses as much as digits as its factorization.

457247765917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103723200, while the sum is 64.

The spelling of 457247765917 in words is "four hundred fifty-seven billion, two hundred forty-seven million, seven hundred sixty-five thousand, nine hundred seventeen".