195457193904 has 80 divisors (see below), whose sum is σ = 585191831040. Its totient is φ = 55058357760.

The previous prime is 195457193879. The next prime is 195457193951. The reversal of 195457193904 is 409391754591.

It is a super-2 number, since 2×195457193904² (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 15 ways as a sum of consecutive naturals, for example, 4072749 + ... + 4120460.

It is an arithmetic number, because the mean of its divisors is an integer number (7314897888).

Almost surely, 2^195457193904 is an apocalyptic number.

195457193904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

195457193904 is an abundant number, since it is smaller than the sum of its proper divisors (389734637136).

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

195457193904 is a wasteful number, since it uses less digits than its factorization.

195457193904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8193298 (or 8193292 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 57.

The spelling of 195457193904 in words is "one hundred ninety-five billion, four hundred fifty-seven million, one hundred ninety-three thousand, nine hundred four".