23049639617 has 4 divisors (see below), whose sum is σ = 23053658880. Its totient is φ = 23045620356.

The previous prime is 23049639577. The next prime is 23049639619. The reversal of 23049639617 is 71693694032.

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 a cyclic number.

It is not a de Polignac number, because 23049639617 - 2²⁴ = 23032862401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23049639619) 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, 2001017 + ... + 2012502.

It is an arithmetic number, because the mean of its divisors is an integer number (5763414720).

Almost surely, 2^23049639617 is an apocalyptic number.

It is an amenable number.

23049639617 is a deficient number, since it is larger than the sum of its proper divisors (4019263).

23049639617 is an equidigital number, since it uses as much as digits as its factorization.

23049639617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019262.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The spelling of 23049639617 in words is "twenty-three billion, forty-nine million, six hundred thirty-nine thousand, six hundred seventeen".