23609000089 has 4 divisors (see below), whose sum is σ = 23609401956. Its totient is φ = 23608598224.

The previous prime is 23609000083. The next prime is 23609000099. The reversal of 23609000089 is 98000090632.

23609000089 = T₁₂₅₄₅₅ + T₁₂₅₄₅₆ + T₁₂₅₄₅₇.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19156774464 + 4452225625 = 138408^2 + 66725^2 .

It is a cyclic number.

It is not a de Polignac number, because 23609000089 - 2³ = 23609000081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23609000081) 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, 93754 + ... + 236659.

It is an arithmetic number, because the mean of its divisors is an integer number (5902350489).

Almost surely, 2^23609000089 is an apocalyptic number.

23609000089 is the 125457-th centered triangular number.

It is an amenable number.

23609000089 is a deficient number, since it is larger than the sum of its proper divisors (401867).

23609000089 is an equidigital number, since it uses as much as digits as its factorization.

23609000089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401866.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 23609000089 in words is "twenty-three billion, six hundred nine million, eighty-nine", and thus it is an aban number.