23556429319 has 2 divisors, whose sum is σ = 23556429320. Its totient is φ = 23556429318.

The previous prime is 23556429313. The next prime is 23556429331. The reversal of 23556429319 is 91392465532.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23556429319 - 2²⁷ = 23422211591 is a prime.

It is a super-2 number, since 2×23556429319² (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 (23556429313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11778214659 + 11778214660.

It is an arithmetic number, because the mean of its divisors is an integer number (11778214660).

Almost surely, 2^23556429319 is an apocalyptic number.

23556429319 is a deficient number, since it is larger than the sum of its proper divisors (1).

23556429319 is an equidigital number, since it uses as much as digits as its factorization.

23556429319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1749600, while the sum is 49.

The spelling of 23556429319 in words is "twenty-three billion, five hundred fifty-six million, four hundred twenty-nine thousand, three hundred nineteen".