23172701867 has 24 divisors (see below), whose sum is σ = 27070460064. Its totient is φ = 19778193792.

The previous prime is 23172701863. The next prime is 23172701879. The reversal of 23172701867 is 76810727132.

It is not a de Polignac number, because 23172701867 - 2² = 23172701863 is a prime.

It is a super-2 number, since 2×23172701867² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23172701863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16950818 + ... + 16952184.

It is an arithmetic number, because the mean of its divisors is an integer number (1127935836).

Almost surely, 2^23172701867 is an apocalyptic number.

23172701867 is a deficient number, since it is larger than the sum of its proper divisors (3897758197).

23172701867 is a wasteful number, since it uses less digits than its factorization.

23172701867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595 (or 2588 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 44.

The spelling of 23172701867 in words is "twenty-three billion, one hundred seventy-two million, seven hundred one thousand, eight hundred sixty-seven".