1959999498199 has 2 divisors, whose sum is σ = 1959999498200. Its totient is φ = 1959999498198.

The previous prime is 1959999498187. The next prime is 1959999498263. The reversal of 1959999498199 is 9918949999591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1959999498199 - 2²³ = 1959991109591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1959999498179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 979999749099 + 979999749100.

It is an arithmetic number, because the mean of its divisors is an integer number (979999749100).

Almost surely, 2^{1959999498199} is an apocalyptic number.

1959999498199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1959999498199 is an equidigital number, since it uses as much as digits as its factorization.

1959999498199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6887475360, while the sum is 91.

The spelling of 1959999498199 in words is "one trillion, nine hundred fifty-nine billion, nine hundred ninety-nine million, four hundred ninety-eight thousand, one hundred ninety-nine".