2099971499 has 2 divisors, whose sum is σ = 2099971500. Its totient is φ = 2099971498.

The previous prime is 2099971493. The next prime is 2099971537. The reversal of 2099971499 is 9941799902.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2099971499 is a prime.

It is a super-2 number, since 2×2099971499² = 8819760593224614002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2099971493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049985749 + 1049985750.

It is an arithmetic number, because the mean of its divisors is an integer number (1049985750).

Almost surely, 2^2099971499 is an apocalyptic number.

2099971499 is a deficient number, since it is larger than the sum of its proper divisors (1).

2099971499 is an equidigital number, since it uses as much as digits as its factorization.

2099971499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3306744, while the sum is 59.

The square root of 2099971499 is about 45825.4459770988. The cubic root of 2099971499 is about 1280.5733716618.

The spelling of 2099971499 in words is "two billion, ninety-nine million, nine hundred seventy-one thousand, four hundred ninety-nine".