198884719700 has 18 divisors (see below), whose sum is σ = 431579841966. Its totient is φ = 79553887840.

The previous prime is 198884719681. The next prime is 198884719711. The reversal of 198884719700 is 7917488891.

It can be written as a sum of positive squares in 3 ways, for example, as 15100996 + 198869618704 = 3886^2 + 445948^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 994423499 + ... + 994423698.

It is an arithmetic number, because the mean of its divisors is an integer number (23976657887).

Almost surely, 2^198884719700 is an apocalyptic number.

198884719700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198884719700 is an abundant number, since it is smaller than the sum of its proper divisors (232695122266).

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

198884719700 is a wasteful number, since it uses less digits than its factorization.

198884719700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988847211 (or 1988847204 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 62.

The spelling of 198884719700 in words is "one hundred ninety-eight billion, eight hundred eighty-four million, seven hundred nineteen thousand, seven hundred".