195498473904 has 360 divisors, whose sum is σ = 600582607872. Its totient is φ = 59191292160.

The previous prime is 195498473879. The next prime is 195498473909. The reversal of 195498473904 is 409374894591.

195498473904 is a `hidden beast` number, since 1 + 9 + 549 + 84 + 7 + 3 + 9 + 0 + 4 = 666.

195498473904 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195498473909) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 357400959 + ... + 357401505.

Almost surely, 2^195498473904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195498473904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300291303936).

195498473904 is an abundant number, since it is smaller than the sum of its proper divisors (405084133968).

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

195498473904 is a wasteful number, since it uses less digits than its factorization.

195498473904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 195498473904 in words is "one hundred ninety-five billion, four hundred ninety-eight million, four hundred seventy-three thousand, nine hundred four".