195243113888 has 24 divisors (see below), whose sum is σ = 393760124100. Its totient is φ = 95240542720.

The previous prime is 195243113873. The next prime is 195243113899. The reversal of 195243113888 is 888311342591.

It can be written as a sum of positive squares in 2 ways, for example, as 162515409424 + 32727704464 = 403132^2 + 180908^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74405363 + ... + 74407986.

Almost surely, 2^195243113888 is an apocalyptic number.

It is an amenable number.

195243113888 is an abundant number, since it is smaller than the sum of its proper divisors (198517010212).

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

195243113888 is a wasteful number, since it uses less digits than its factorization.

195243113888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148813400 (or 148813392 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 53.

The spelling of 195243113888 in words is "one hundred ninety-five billion, two hundred forty-three million, one hundred thirteen thousand, eight hundred eighty-eight".