195444688954 has 16 divisors (see below), whose sum is σ = 293903505792. Its totient is φ = 97477003008.

The previous prime is 195444688909. The next prime is 195444689173. The reversal of 195444688954 is 459886444591.

It is a super-2 number, since 2×195444688954² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 195444688954.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2708122 + ... + 2779354.

It is an arithmetic number, because the mean of its divisors is an integer number (18368969112).

Almost surely, 2^195444688954 is an apocalyptic number.

195444688954 is a deficient number, since it is larger than the sum of its proper divisors (98458816838).

195444688954 is a wasteful number, since it uses less digits than its factorization.

195444688954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74661.

The product of its digits is 199065600, while the sum is 67.

The spelling of 195444688954 in words is "one hundred ninety-five billion, four hundred forty-four million, six hundred eighty-eight thousand, nine hundred fifty-four".