199857119999 has 2 divisors, whose sum is σ = 199857120000. Its totient is φ = 199857119998.

The previous prime is 199857119989. The next prime is 199857120019. The reversal of 199857119999 is 999911758991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199857119999 - 2²⁴ = 199840342783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199857119989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99928559999 + 99928560000.

It is an arithmetic number, because the mean of its divisors is an integer number (99928560000).

Almost surely, 2^199857119999 is an apocalyptic number.

199857119999 is a deficient number, since it is larger than the sum of its proper divisors (1).

199857119999 is an equidigital number, since it uses as much as digits as its factorization.

199857119999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148803480, while the sum is 77.

The spelling of 199857119999 in words is "one hundred ninety-nine billion, eight hundred fifty-seven million, one hundred nineteen thousand, nine hundred ninety-nine".