199914505924 has 81 divisors (see below), whose sum is σ = 412143344487. Its totient is φ = 84601879488.

The previous prime is 199914505883. The next prime is 199914505939. The reversal of 199914505924 is 429505419991.

The square root of 199914505924 is 447118.

It is a perfect power (a square), and thus also a powerful number.

199914505924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 93617640900 + 106296865024 = 305970^2 + 326032^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 682301922 + ... + 682302214.

Almost surely, 2^199914505924 is an apocalyptic number.

199914505924 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

199914505924 is the 447118-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199914505924

199914505924 is an abundant number, since it is smaller than the sum of its proper divisors (212228838563).

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

199914505924 is an equidigital number, since it uses as much as digits as its factorization.

199914505924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 58.

The spelling of 199914505924 in words is "one hundred ninety-nine billion, nine hundred fourteen million, five hundred five thousand, nine hundred twenty-four".