13423624817 has 2 divisors, whose sum is σ = 13423624818. Its totient is φ = 13423624816.

The previous prime is 13423624807. The next prime is 13423624843. The reversal of 13423624817 is 71842632431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13239724096 + 183900721 = 115064^2 + 13561^2 .

It is an emirp because it is prime and its reverse (71842632431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13423624817 - 2²² = 13419430513 is a prime.

It is not a weakly prime, because it can be changed into another prime (13423624807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6711812408 + 6711812409.

It is an arithmetic number, because the mean of its divisors is an integer number (6711812409).

Almost surely, 2^13423624817 is an apocalyptic number.

It is an amenable number.

13423624817 is a deficient number, since it is larger than the sum of its proper divisors (1).

13423624817 is an equidigital number, since it uses as much as digits as its factorization.

13423624817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 41.

The spelling of 13423624817 in words is "thirteen billion, four hundred twenty-three million, six hundred twenty-four thousand, eight hundred seventeen".