23185995429 has 4 divisors (see below), whose sum is σ = 30914660576. Its totient is φ = 15457330284.

The previous prime is 23185995421. The next prime is 23185995463. The reversal of 23185995429 is 92459958132.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23185995429 - 2³ = 23185995421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23185995421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3864332569 + ... + 3864332574.

It is an arithmetic number, because the mean of its divisors is an integer number (7728665144).

Almost surely, 2^23185995429 is an apocalyptic number.

It is an amenable number.

23185995429 is a deficient number, since it is larger than the sum of its proper divisors (7728665147).

23185995429 is an equidigital number, since it uses as much as digits as its factorization.

23185995429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7728665146.

The product of its digits is 6998400, while the sum is 57.

The spelling of 23185995429 in words is "twenty-three billion, one hundred eighty-five million, nine hundred ninety-five thousand, four hundred twenty-nine".