13422690817 has 2 divisors, whose sum is σ = 13422690818. Its totient is φ = 13422690816.

The previous prime is 13422690781. The next prime is 13422690857. The reversal of 13422690817 is 71809622431.

Together with previous prime (13422690781) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7694622961 + 5728067856 = 87719^2 + 75684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13422690817 is a prime.

It is a super-2 number, since 2×13422690817² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13422690857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6711345408 + 6711345409.

It is an arithmetic number, because the mean of its divisors is an integer number (6711345409).

Almost surely, 2^13422690817 is an apocalyptic number.

It is an amenable number.

13422690817 is a deficient number, since it is larger than the sum of its proper divisors (1).

13422690817 is an equidigital number, since it uses as much as digits as its factorization.

13422690817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 13422690817 in words is "thirteen billion, four hundred twenty-two million, six hundred ninety thousand, eight hundred seventeen".