22856947439317 has 2 divisors, whose sum is σ = 22856947439318. Its totient is φ = 22856947439316.

The previous prime is 22856947439231. The next prime is 22856947439383. The reversal of 22856947439317 is 71393474965822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22856947439236 + 81 = 4780894^2 + 9^2 .

It is a cyclic number.

It is not a de Polignac number, because 22856947439317 - 2³⁹ = 22307191625429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22856947439017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11428473719658 + 11428473719659.

It is an arithmetic number, because the mean of its divisors is an integer number (11428473719659).

Almost surely, 2^{22856947439317} is an apocalyptic number.

It is an amenable number.

22856947439317 is a deficient number, since it is larger than the sum of its proper divisors (1).

22856947439317 is an equidigital number, since it uses as much as digits as its factorization.

22856947439317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 548674560, while the sum is 70.

The spelling of 22856947439317 in words is "twenty-two trillion, eight hundred fifty-six billion, nine hundred forty-seven million, four hundred thirty-nine thousand, three hundred seventeen".