23445339173 has 4 divisors (see below), whose sum is σ = 23445646560. Its totient is φ = 23445031788.

The previous prime is 23445339163. The next prime is 23445339209. The reversal of 23445339173 is 37193354432.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23445339173 - 2²² = 23441144869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23445339143) 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, 56936 + ... + 223902.

It is an arithmetic number, because the mean of its divisors is an integer number (5861411640).

Almost surely, 2^23445339173 is an apocalyptic number.

It is an amenable number.

23445339173 is a deficient number, since it is larger than the sum of its proper divisors (307387).

23445339173 is a wasteful number, since it uses less digits than its factorization.

23445339173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307386.

The product of its digits is 816480, while the sum is 44.

The spelling of 23445339173 in words is "twenty-three billion, four hundred forty-five million, three hundred thirty-nine thousand, one hundred seventy-three".