195401634492 has 48 divisors (see below), whose sum is σ = 471236032512. Its totient is φ = 62953602240.

The previous prime is 195401634437. The next prime is 195401634503. The reversal of 195401634492 is 294436104591.

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, 33048 + ... + 626015.

It is an arithmetic number, because the mean of its divisors is an integer number (9817417344).

Almost surely, 2^195401634492 is an apocalyptic number.

195401634492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

195401634492 is an abundant number, since it is smaller than the sum of its proper divisors (275834398020).

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

195401634492 is a wasteful number, since it uses less digits than its factorization.

195401634492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659898 (or 659896 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 195401634492 in words is "one hundred ninety-five billion, four hundred one million, six hundred thirty-four thousand, four hundred ninety-two".