2099766849 has 16 divisors (see below), whose sum is σ = 2965636800. Its totient is φ = 1316940800.

The previous prime is 2099766847. The next prime is 2099766859. The reversal of 2099766849 is 9486679902.

It is a cyclic number.

It is not a de Polignac number, because 2099766849 - 2¹ = 2099766847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2099766792 and 2099766801.

It is not an unprimeable number, because it can be changed into a prime (2099766847) 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 in 15 ways as a sum of consecutive naturals, for example, 135502 + ... + 150200.

It is an arithmetic number, because the mean of its divisors is an integer number (185352300).

Almost surely, 2^2099766849 is an apocalyptic number.

It is an amenable number.

2099766849 is a deficient number, since it is larger than the sum of its proper divisors (865869951).

2099766849 is a wasteful number, since it uses less digits than its factorization.

2099766849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17520.

The product of its (nonzero) digits is 11757312, while the sum is 60.

The square root of 2099766849 is about 45823.2129929799. The cubic root of 2099766849 is about 1280.5317714378.

The spelling of 2099766849 in words is "two billion, ninety-nine million, seven hundred sixty-six thousand, eight hundred forty-nine".