195728088915090 has 96 divisors (see below), whose sum is σ = 509495346487296. Its totient is φ = 52132394555520.

The previous prime is 195728088915089. The next prime is 195728088915113. The reversal of 195728088915090 is 90519880827591.

195728088915090 is a `hidden beast` number, since 1 + 9 + 5 + 7 + 28 + 0 + 8 + 8 + 91 + 509 + 0 = 666.

195728088915090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 723371407 + ... + 723641933.

It is an arithmetic number, because the mean of its divisors is an integer number (5307243192576).

Almost surely, 2^{195728088915090} is an apocalyptic number.

195728088915090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195728088915090 is an abundant number, since it is smaller than the sum of its proper divisors (313767257572206).

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

195728088915090 is a wasteful number, since it uses less digits than its factorization.

195728088915090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280024 (or 280021 counting only the distinct ones).

The product of its (nonzero) digits is 130636800, while the sum is 72.

The spelling of 195728088915090 in words is "one hundred ninety-five trillion, seven hundred twenty-eight billion, eighty-eight million, nine hundred fifteen thousand, ninety".