195404085258 has 16 divisors (see below), whose sum is σ = 392854288896. Its totient is φ = 64793675360.

The previous prime is 195404085257. The next prime is 195404085271. The reversal of 195404085258 is 852580404591.

It is a self number, because there is not a number n which added to its sum of digits gives 195404085258.

It is not an unprimeable number, because it can be changed into a prime (195404085251) 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 7 ways as a sum of consecutive naturals, for example, 85253691 + ... + 85255982.

It is an arithmetic number, because the mean of its divisors is an integer number (24553393056).

Almost surely, 2^195404085258 is an apocalyptic number.

195404085258 is an abundant number, since it is smaller than the sum of its proper divisors (197450203638).

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

195404085258 is a wasteful number, since it uses less digits than its factorization.

195404085258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170509869.

The product of its (nonzero) digits is 2304000, while the sum is 51.

The spelling of 195404085258 in words is "one hundred ninety-five billion, four hundred four million, eighty-five thousand, two hundred fifty-eight".