194908452888 has 128 divisors (see below), whose sum is σ = 519582597120. Its totient is φ = 60819310080.

The previous prime is 194908452859. The next prime is 194908452923. The reversal of 194908452888 is 888254809491.

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, 4741881 + ... + 4782807.

It is an arithmetic number, because the mean of its divisors is an integer number (4059239040).

Almost surely, 2^194908452888 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 194908452888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259791298560).

194908452888 is an abundant number, since it is smaller than the sum of its proper divisors (324674144232).

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

194908452888 is a wasteful number, since it uses less digits than its factorization.

194908452888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41177 (or 41173 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 66.

The spelling of 194908452888 in words is "one hundred ninety-four billion, nine hundred eight million, four hundred fifty-two thousand, eight hundred eighty-eight".