195829934840 has 64 divisors (see below), whose sum is σ = 441602249760. Its totient is φ = 78157094400.

The previous prime is 195829934821. The next prime is 195829934921. The reversal of 195829934840 is 48439928591.

It is a congruent number.

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, 43994615 + ... + 43999065.

Almost surely, 2^195829934840 is an apocalyptic number.

195829934840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195829934840 is an abundant number, since it is smaller than the sum of its proper divisors (245772314920).

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

195829934840 is a wasteful number, since it uses less digits than its factorization.

195829934840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672 (or 6668 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 62.

The spelling of 195829934840 in words is "one hundred ninety-five billion, eight hundred twenty-nine million, nine hundred thirty-four thousand, eight hundred forty".