23172672256017 has 8 divisors (see below), whose sum is σ = 32714360832096. Its totient is φ = 14539715925312.

The previous prime is 23172672256009. The next prime is 23172672256021. The reversal of 23172672256017 is 71065227627132.

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

It is not a de Polignac number, because 23172672256017 - 2³ = 23172672256009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 454366122667 = 23172672256017 / (2 + 3 + 1 + 7 + 2 + 6 + 7 + 2 + 2 + 5 + 6 + 0 + 1 + 7).

It is not an unprimeable number, because it can be changed into a prime (23172672256067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227183061283 + ... + 227183061384.

It is an arithmetic number, because the mean of its divisors is an integer number (4089295104012).

Almost surely, 2^{23172672256017} is an apocalyptic number.

It is an amenable number.

23172672256017 is a deficient number, since it is larger than the sum of its proper divisors (9541688576079).

23172672256017 is a wasteful number, since it uses less digits than its factorization.

23172672256017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454366122687.

The product of its (nonzero) digits is 2963520, while the sum is 51.

The spelling of 23172672256017 in words is "twenty-three trillion, one hundred seventy-two billion, six hundred seventy-two million, two hundred fifty-six thousand, seventeen".