199074807684 has 27 divisors (see below), whose sum is σ = 503223642103. Its totient is φ = 66357376872.

The previous prime is 199074807677. The next prime is 199074807709. The reversal of 199074807684 is 486708470991.

The square root of 199074807684 is 446178.

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

199074807684 is a `hidden beast` number, since 1 + 9 + 9 + 0 + 7 + 480 + 76 + 84 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2639887 + ... + 2714249.

Almost surely, 2^199074807684 is an apocalyptic number.

199074807684 is the 446178-th square number.

It is an amenable number.

199074807684 is an abundant number, since it is smaller than the sum of its proper divisors (304148834419).

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

199074807684 is an frugal number, since it uses more digits than its factorization.

199074807684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148736 (or 74368 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 199074807684 in words is "one hundred ninety-nine billion, seventy-four million, eight hundred seven thousand, six hundred eighty-four".