195972868 has 48 divisors (see below), whose sum is σ = 433533184. Its totient is φ = 75427200.

The previous prime is 195972841. The next prime is 195972869. The reversal of 195972868 is 868279591.

195972868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (195972869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6193 + ... + 20743.

Almost surely, 2^195972868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195972868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216766592).

195972868 is an abundant number, since it is smaller than the sum of its proper divisors (237560316).

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

195972868 is a wasteful number, since it uses less digits than its factorization.

195972868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14612 (or 14610 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 55.

The square root of 195972868 is about 13999.0309664634. The cubic root of 195972868 is about 580.8517687225.

The spelling of 195972868 in words is "one hundred ninety-five million, nine hundred seventy-two thousand, eight hundred sixty-eight".