199089964811 has 2 divisors, whose sum is σ = 199089964812. Its totient is φ = 199089964810.

The previous prime is 199089964793. The next prime is 199089964859. The reversal of 199089964811 is 118469980991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199089964811 - 2¹⁴ = 199089948427 is a prime.

It is not a weakly prime, because it can be changed into another prime (199089966811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99544982405 + 99544982406.

It is an arithmetic number, because the mean of its divisors is an integer number (99544982406).

Almost surely, 2^199089964811 is an apocalyptic number.

199089964811 is a deficient number, since it is larger than the sum of its proper divisors (1).

199089964811 is an equidigital number, since it uses as much as digits as its factorization.

199089964811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10077696, while the sum is 65.

The spelling of 199089964811 in words is "one hundred ninety-nine billion, eighty-nine million, nine hundred sixty-four thousand, eight hundred eleven".