23195445318 has 24 divisors (see below), whose sum is σ = 51989792400. Its totient is φ = 7465200624.

The previous prime is 23195445313. The next prime is 23195445331. The reversal of 23195445318 is 81354459132.

23195445318 is a `hidden beast` number, since 2 + 3 + 195 + 4 + 453 + 1 + 8 = 666.

It is a super-2 number, since 2×23195445318² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23195445313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22217338 + ... + 22218381.

It is an arithmetic number, because the mean of its divisors is an integer number (2166241350).

Almost surely, 2^23195445318 is an apocalyptic number.

23195445318 is an abundant number, since it is smaller than the sum of its proper divisors (28794347082).

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

23195445318 is a wasteful number, since it uses less digits than its factorization.

23195445318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44435756 (or 44435753 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 23195445318 in words is "twenty-three billion, one hundred ninety-five million, four hundred forty-five thousand, three hundred eighteen".