23172557433 has 8 divisors (see below), whose sum is σ = 30951045600. Its totient is φ = 15421220448.

The previous prime is 23172557413. The next prime is 23172557459. The reversal of 23172557433 is 33475527132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23172557433 - 2¹⁰ = 23172556409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23172557413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6785803 + ... + 6789216.

It is an arithmetic number, because the mean of its divisors is an integer number (3868880700).

Almost surely, 2^23172557433 is an apocalyptic number.

It is an amenable number.

23172557433 is a deficient number, since it is larger than the sum of its proper divisors (7778488167).

23172557433 is a wasteful number, since it uses less digits than its factorization.

23172557433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13575591.

The product of its digits is 529200, while the sum is 42.

The spelling of 23172557433 in words is "twenty-three billion, one hundred seventy-two million, five hundred fifty-seven thousand, four hundred thirty-three".