195290131446 has 24 divisors (see below), whose sum is σ = 423189415584. Its totient is φ = 65087357040.

The previous prime is 195290131441. The next prime is 195290131489. The reversal of 195290131446 is 644131092591.

195290131446 is a `hidden beast` number, since 1 + 9 + 5 + 290 + 1 + 314 + 46 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195290131441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 650121 + ... + 901796.

It is an arithmetic number, because the mean of its divisors is an integer number (17632892316).

Almost surely, 2^195290131446 is an apocalyptic number.

195290131446 is an abundant number, since it is smaller than the sum of its proper divisors (227899284138).

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

195290131446 is a wasteful number, since it uses less digits than its factorization.

195290131446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558916 (or 1558913 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 195290131446 in words is "one hundred ninety-five billion, two hundred ninety million, one hundred thirty-one thousand, four hundred forty-six".