23172327745405 has 16 divisors (see below), whose sum is σ = 27849828706560. Its totient is φ = 18509175785152.

The previous prime is 23172327745331. The next prime is 23172327745417. The reversal of 23172327745405 is 50454772327132.

It is a cyclic number.

It is not a de Polignac number, because 23172327745405 - 2²⁵ = 23172294190973 is a prime.

It is a super-2 number, since 2×23172327745405² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49319202 + ... + 49786828.

It is an arithmetic number, because the mean of its divisors is an integer number (1740614294160).

Almost surely, 2^{23172327745405} is an apocalyptic number.

It is an amenable number.

23172327745405 is a deficient number, since it is larger than the sum of its proper divisors (4677500961155).

23172327745405 is a wasteful number, since it uses less digits than its factorization.

23172327745405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482948.

The product of its (nonzero) digits is 9878400, while the sum is 52.

The spelling of 23172327745405 in words is "twenty-three trillion, one hundred seventy-two billion, three hundred twenty-seven million, seven hundred forty-five thousand, four hundred five".