23453591719 has 2 divisors, whose sum is σ = 23453591720. Its totient is φ = 23453591718.

The previous prime is 23453591639. The next prime is 23453591741. The reversal of 23453591719 is 91719535432.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23453591719 - 2²⁵ = 23420037287 is a prime.

It is a super-2 number, since 2×23453591719² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23453591519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11726795859 + 11726795860.

It is an arithmetic number, because the mean of its divisors is an integer number (11726795860).

Almost surely, 2^23453591719 is an apocalyptic number.

23453591719 is a deficient number, since it is larger than the sum of its proper divisors (1).

23453591719 is an equidigital number, since it uses as much as digits as its factorization.

23453591719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020600, while the sum is 49.

The spelling of 23453591719 in words is "twenty-three billion, four hundred fifty-three million, five hundred ninety-one thousand, seven hundred nineteen".