22138426964807 has 2 divisors, whose sum is σ = 22138426964808. Its totient is φ = 22138426964806.

The previous prime is 22138426964783. The next prime is 22138426964821. The reversal of 22138426964807 is 70846962483122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22138426964807 - 2¹⁸ = 22138426702663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22138426964807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22138426966807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11069213482403 + 11069213482404.

It is an arithmetic number, because the mean of its divisors is an integer number (11069213482404).

Almost surely, 2^{22138426964807} is an apocalyptic number.

22138426964807 is a deficient number, since it is larger than the sum of its proper divisors (1).

22138426964807 is an equidigital number, since it uses as much as digits as its factorization.

22138426964807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55738368, while the sum is 62.

The spelling of 22138426964807 in words is "twenty-two trillion, one hundred thirty-eight billion, four hundred twenty-six million, nine hundred sixty-four thousand, eight hundred seven".