195272095820 has 24 divisors (see below), whose sum is σ = 410381881728. Its totient is φ = 78049699200.

The previous prime is 195272095817. The next prime is 195272095853. The reversal of 195272095820 is 28590272591.

It is a happy number.

It is a super-2 number, since 2×195272095820² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3669116 + ... + 3721955.

It is an arithmetic number, because the mean of its divisors is an integer number (17099245072).

Almost surely, 2^195272095820 is an apocalyptic number.

195272095820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195272095820 is an abundant number, since it is smaller than the sum of its proper divisors (215109785908).

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

195272095820 is a wasteful number, since it uses less digits than its factorization.

195272095820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7392401 (or 7392399 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 50.

The spelling of 195272095820 in words is "one hundred ninety-five billion, two hundred seventy-two million, ninety-five thousand, eight hundred twenty".