22856947439231 has 2 divisors, whose sum is σ = 22856947439232. Its totient is φ = 22856947439230.

The previous prime is 22856947439219. The next prime is 22856947439317. The reversal of 22856947439231 is 13293474965822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22856947439231 - 2¹⁸ = 22856947177087 is a prime.

It is a super-2 number, since 2×22856947439231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22856947459231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11428473719615 + 11428473719616.

It is an arithmetic number, because the mean of its divisors is an integer number (11428473719616).

Almost surely, 2^{22856947439231} is an apocalyptic number.

22856947439231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22856947439231 is an equidigital number, since it uses as much as digits as its factorization.

22856947439231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156764160, while the sum is 65.

The spelling of 22856947439231 in words is "twenty-two trillion, eight hundred fifty-six billion, nine hundred forty-seven million, four hundred thirty-nine thousand, two hundred thirty-one".