23523691009 has 16 divisors (see below), whose sum is σ = 28956711168. Its totient is φ = 18609273792.

The previous prime is 23523691007. The next prime is 23523691073. The reversal of 23523691009 is 90019632532.

It is a cyclic number.

It is not a de Polignac number, because 23523691009 - 2¹ = 23523691007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23523691007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 722724 + ... + 754570.

It is an arithmetic number, because the mean of its divisors is an integer number (1809794448).

Almost surely, 2^23523691009 is an apocalyptic number.

It is an amenable number.

23523691009 is a deficient number, since it is larger than the sum of its proper divisors (5433020159).

23523691009 is a wasteful number, since it uses less digits than its factorization.

23523691009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39984.

The product of its (nonzero) digits is 87480, while the sum is 40.

The spelling of 23523691009 in words is "twenty-three billion, five hundred twenty-three million, six hundred ninety-one thousand, nine".