23172027844 has 24 divisors (see below), whose sum is σ = 46404364160. Its totient is φ = 9917945856.

The previous prime is 23172027841. The next prime is 23172027863. The reversal of 23172027844 is 44872027132.

It is a super-2 number, since 2×23172027844² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23172027797 and 23172027806.

It is not an unprimeable number, because it can be changed into a prime (23172027841) 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, 516552 + ... + 559615.

Almost surely, 2^23172027844 is an apocalyptic number.

It is an amenable number.

23172027844 is an abundant number, since it is smaller than the sum of its proper divisors (23232336316).

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

23172027844 is a wasteful number, since it uses less digits than its factorization.

23172027844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076947 (or 1076945 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The spelling of 23172027844 in words is "twenty-three billion, one hundred seventy-two million, twenty-seven thousand, eight hundred forty-four".