23390512786171 has 4 divisors (see below), whose sum is σ = 23405992941744. Its totient is φ = 23375032630600.

The previous prime is 23390512786159. The next prime is 23390512786247. The reversal of 23390512786171 is 17168721509332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23390512786171 - 2¹³ = 23390512777979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23390512786111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7740075520 + ... + 7740078541.

It is an arithmetic number, because the mean of its divisors is an integer number (5851498235436).

Almost surely, 2^{23390512786171} is an apocalyptic number.

23390512786171 is a deficient number, since it is larger than the sum of its proper divisors (15480155573).

23390512786171 is a wasteful number, since it uses less digits than its factorization.

23390512786171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15480155572.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The spelling of 23390512786171 in words is "twenty-three trillion, three hundred ninety billion, five hundred twelve million, seven hundred eighty-six thousand, one hundred seventy-one".