2109013799 has 2 divisors, whose sum is σ = 2109013800. Its totient is φ = 2109013798.

The previous prime is 2109013771. The next prime is 2109013843. The reversal of 2109013799 is 9973109012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2109013799 - 2¹² = 2109009703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2109013729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054506899 + 1054506900.

It is an arithmetic number, because the mean of its divisors is an integer number (1054506900).

Almost surely, 2^2109013799 is an apocalyptic number.

2109013799 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109013799 is an equidigital number, since it uses as much as digits as its factorization.

2109013799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 2109013799 is about 45924.0002504137. Note that the first 3 decimals coincide. The cubic root of 2109013799 is about 1282.4087534559.

The spelling of 2109013799 in words is "two billion, one hundred nine million, thirteen thousand, seven hundred ninety-nine".