23173352147537 has 4 divisors (see below), whose sum is σ = 23173854967536. Its totient is φ = 23172849327540.

The previous prime is 23173352147527. The next prime is 23173352147549. The reversal of 23173352147537 is 73574125337132.

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 23173352147537 - 2⁴ = 23173352147521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23173352147527) 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, 251340863 + ... + 251433044.

It is an arithmetic number, because the mean of its divisors is an integer number (5793463741884).

Almost surely, 2^{23173352147537} is an apocalyptic number.

It is an amenable number.

23173352147537 is a deficient number, since it is larger than the sum of its proper divisors (502819999).

23173352147537 is an equidigital number, since it uses as much as digits as its factorization.

23173352147537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502819998.

The product of its digits is 11113200, while the sum is 53.

The spelling of 23173352147537 in words is "twenty-three trillion, one hundred seventy-three billion, three hundred fifty-two million, one hundred forty-seven thousand, five hundred thirty-seven".