195312731364 has 81 divisors (see below), whose sum is σ = 501059529243. Its totient is φ = 64148765184.

The previous prime is 195312731351. The next prime is 195312731371. The reversal of 195312731364 is 463137213591.

The square root of 195312731364 is 441942.

It is a perfect power (a square), and thus also a powerful number.

195312731364 is a `hidden beast` number, since 1 + 9 + 531 + 27 + 31 + 3 + 64 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3300502500 + 192012228864 = 57450^2 + 438192^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 193570092 + ... + 193571100.

Almost surely, 2^195312731364 is an apocalyptic number.

195312731364 is the 441942-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195312731364

195312731364 is an abundant number, since it is smaller than the sum of its proper divisors (305746797879).

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

195312731364 is an equidigital number, since it uses as much as digits as its factorization.

195312731364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174 (or 1087 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The spelling of 195312731364 in words is "one hundred ninety-five billion, three hundred twelve million, seven hundred thirty-one thousand, three hundred sixty-four".