23188967429 has 2 divisors, whose sum is σ = 23188967430. Its totient is φ = 23188967428.

The previous prime is 23188967383. The next prime is 23188967441. The reversal of 23188967429 is 92476988132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23135018404 + 53949025 = 152102^2 + 7345^2 .

It is a cyclic number.

It is not a de Polignac number, because 23188967429 - 2⁸ = 23188967173 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23188927429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11594483714 + 11594483715.

It is an arithmetic number, because the mean of its divisors is an integer number (11594483715).

Almost surely, 2^23188967429 is an apocalyptic number.

It is an amenable number.

23188967429 is a deficient number, since it is larger than the sum of its proper divisors (1).

23188967429 is an equidigital number, since it uses as much as digits as its factorization.

23188967429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10450944, while the sum is 59.

The spelling of 23188967429 in words is "twenty-three billion, one hundred eighty-eight million, nine hundred sixty-seven thousand, four hundred twenty-nine".