23135679909 has 12 divisors (see below), whose sum is σ = 33456062016. Its totient is φ = 15406313832.

The previous prime is 23135679907. The next prime is 23135679913. The reversal of 23135679909 is 90997653132.

It is a happy number.

It is not a de Polignac number, because 23135679909 - 2¹ = 23135679907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23135679907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1447677 + ... + 1463570.

It is an arithmetic number, because the mean of its divisors is an integer number (2788005168).

Almost surely, 2^23135679909 is an apocalyptic number.

It is an amenable number.

23135679909 is a deficient number, since it is larger than the sum of its proper divisors (10320382107).

23135679909 is a wasteful number, since it uses less digits than its factorization.

23135679909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912136 (or 2912133 counting only the distinct ones).

The product of its (nonzero) digits is 2755620, while the sum is 54.

The spelling of 23135679909 in words is "twenty-three billion, one hundred thirty-five million, six hundred seventy-nine thousand, nine hundred nine".