195299743806 has 24 divisors (see below), whose sum is σ = 432152626464. Its totient is φ = 63714809760.

The previous prime is 195299743787. The next prime is 195299743819. The reversal of 195299743806 is 608347992591.

195299743806 is a `hidden beast` number, since 1 + 9 + 529 + 9 + 74 + 38 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115424535 + ... + 115426226.

It is an arithmetic number, because the mean of its divisors is an integer number (18006359436).

It is a 2-persistent number, because it is pandigital, and so is 2⋅195299743806 = 390599487612, but 3⋅195299743806 = 585899231418 is not.

Almost surely, 2^195299743806 is an apocalyptic number.

195299743806 is an abundant number, since it is smaller than the sum of its proper divisors (236852882658).

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

195299743806 is a wasteful number, since it uses less digits than its factorization.

195299743806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230850816 (or 230850813 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 195299743806 in words is "one hundred ninety-five billion, two hundred ninety-nine million, seven hundred forty-three thousand, eight hundred six".