23171007858 has 16 divisors (see below), whose sum is σ = 46598051136. Its totient is φ = 7680996720.

The previous prime is 23171007857. The next prime is 23171007869. The reversal of 23171007858 is 85870017132.

It is not an unprimeable number, because it can be changed into a prime (23171007857) 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, 10666966 + ... + 10669137.

It is an arithmetic number, because the mean of its divisors is an integer number (2912378196).

Almost surely, 2^23171007858 is an apocalyptic number.

23171007858 is an abundant number, since it is smaller than the sum of its proper divisors (23427043278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23171007858 is a wasteful number, since it uses less digits than its factorization.

23171007858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21336289.

The product of its (nonzero) digits is 94080, while the sum is 42.

The spelling of 23171007858 in words is "twenty-three billion, one hundred seventy-one million, seven thousand, eight hundred fifty-eight".