23443715777717 has 2 divisors, whose sum is σ = 23443715777718. Its totient is φ = 23443715777716.

The previous prime is 23443715777711. The next prime is 23443715777719. The reversal of 23443715777717 is 71777751734432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17159138084881 + 6284577692836 = 4142359^2 + 2506906^2 .

It is a cyclic number.

It is not a de Polignac number, because 23443715777717 - 2³⁴ = 23426535908533 is a prime.

Together with 23443715777719, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23443715777711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11721857888858 + 11721857888859.

It is an arithmetic number, because the mean of its divisors is an integer number (11721857888859).

Almost surely, 2^{23443715777717} is an apocalyptic number.

It is an amenable number.

23443715777717 is a deficient number, since it is larger than the sum of its proper divisors (1).

23443715777717 is an equidigital number, since it uses as much as digits as its factorization.

23443715777717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169414560, while the sum is 65.

The spelling of 23443715777717 in words is "twenty-three trillion, four hundred forty-three billion, seven hundred fifteen million, seven hundred seventy-seven thousand, seven hundred seventeen".