195448858838 has 64 divisors (see below), whose sum is σ = 315225630720. Its totient is φ = 90683712000.

The previous prime is 195448858811. The next prime is 195448858853. The reversal of 195448858838 is 838858844591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221345945 + ... + 221346827.

It is an arithmetic number, because the mean of its divisors is an integer number (4925400480).

Almost surely, 2^195448858838 is an apocalyptic number.

195448858838 is a deficient number, since it is larger than the sum of its proper divisors (119776771882).

195448858838 is a wasteful number, since it uses less digits than its factorization.

195448858838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653.

The product of its digits is 353894400, while the sum is 71.

The spelling of 195448858838 in words is "one hundred ninety-five billion, four hundred forty-eight million, eight hundred fifty-eight thousand, eight hundred thirty-eight".