2109599811 has 48 divisors (see below), whose sum is σ = 3558672000. Its totient is φ = 1190661120.

The previous prime is 2109599797. The next prime is 2109599839. The reversal of 2109599811 is 1189959012.

It is not a de Polignac number, because 2109599811 - 2¹³ = 2109591619 is a prime.

It is a super-2 number, since 2×2109599811² = 8900822725142471442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2109599911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101475 + ... + 120483.

It is an arithmetic number, because the mean of its divisors is an integer number (74139000).

Almost surely, 2^2109599811 is an apocalyptic number.

2109599811 is a deficient number, since it is larger than the sum of its proper divisors (1449072189).

2109599811 is a wasteful number, since it uses less digits than its factorization.

2109599811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19104 (or 19101 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 45.

The square root of 2109599811 is about 45930.3800441494. The cubic root of 2109599811 is about 1282.5275194441.

The spelling of 2109599811 in words is "two billion, one hundred nine million, five hundred ninety-nine thousand, eight hundred eleven".