22138426964767 has 4 divisors (see below), whose sum is σ = 22678388598096. Its totient is φ = 21598465331440.

The previous prime is 22138426964723. The next prime is 22138426964783. The reversal of 22138426964767 is 76746962483122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22138426964767 - 2³⁵ = 22104067226399 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22138424964767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269980816603 + ... + 269980816684.

It is an arithmetic number, because the mean of its divisors is an integer number (5669597149524).

Almost surely, 2^{22138426964767} is an apocalyptic number.

22138426964767 is a deficient number, since it is larger than the sum of its proper divisors (539961633329).

22138426964767 is an equidigital number, since it uses as much as digits as its factorization.

22138426964767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539961633328.

The product of its digits is 292626432, while the sum is 67.

The spelling of 22138426964767 in words is "twenty-two trillion, one hundred thirty-eight billion, four hundred twenty-six million, nine hundred sixty-four thousand, seven hundred sixty-seven".