199894043084 has 12 divisors (see below), whose sum is σ = 351315927144. Its totient is φ = 99518063904.

The previous prime is 199894043053. The next prime is 199894043093. The reversal of 199894043084 is 480340498991.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107238362 + ... + 107240225.

It is an arithmetic number, because the mean of its divisors is an integer number (29276327262).

Almost surely, 2^199894043084 is an apocalyptic number.

It is an amenable number.

199894043084 is a deficient number, since it is larger than the sum of its proper divisors (151421884060).

199894043084 is a wasteful number, since it uses less digits than its factorization.

199894043084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214478824 (or 214478822 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 59.

The spelling of 199894043084 in words is "one hundred ninety-nine billion, eight hundred ninety-four million, forty-three thousand, eighty-four".