195831234240 has 112 divisors (see below), whose sum is σ = 621942693120. Its totient is φ = 52206668800.

The previous prime is 195831234223. The next prime is 195831234251. The reversal of 195831234240 is 42432138591.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 195831234192 and 195831234201.

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, 3542815 + ... + 3597665.

It is an arithmetic number, because the mean of its divisors is an integer number (5553059760).

Almost surely, 2^195831234240 is an apocalyptic number.

195831234240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195831234240 is an abundant number, since it is smaller than the sum of its proper divisors (426111458880).

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

195831234240 is a wasteful number, since it uses less digits than its factorization.

195831234240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58590 (or 58580 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 195831234240 in words is "one hundred ninety-five billion, eight hundred thirty-one million, two hundred thirty-four thousand, two hundred forty".