199969682794 has 16 divisors (see below), whose sum is σ = 350098898688. Its totient is φ = 83877860592.

The previous prime is 199969682791. The next prime is 199969682819. The reversal of 199969682794 is 497286969991.

It is not an unprimeable number, because it can be changed into a prime (199969682791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151951989 + ... + 151953304.

It is an arithmetic number, because the mean of its divisors is an integer number (21881181168).

Almost surely, 2^199969682794 is an apocalyptic number.

199969682794 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

199969682794 is a deficient number, since it is larger than the sum of its proper divisors (150129215894).

199969682794 is a wasteful number, since it uses less digits than its factorization.

199969682794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303905349.

The product of its digits is 952342272, while the sum is 79.

The spelling of 199969682794 in words is "one hundred ninety-nine billion, nine hundred sixty-nine million, six hundred eighty-two thousand, seven hundred ninety-four".