2105980799 has 16 divisors (see below), whose sum is σ = 2289154560. Its totient is φ = 1925894880.

The previous prime is 2105980787. The next prime is 2105980819. The reversal of 2105980799 is 9970895012.

It is a happy number.

It is not a de Polignac number, because 2105980799 - 2¹² = 2105976703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105980399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1139294 + ... + 1141140.

It is an arithmetic number, because the mean of its divisors is an integer number (143072160).

Almost surely, 2^2105980799 is an apocalyptic number.

2105980799 is a deficient number, since it is larger than the sum of its proper divisors (183173761).

2105980799 is a wasteful number, since it uses less digits than its factorization.

2105980799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630.

The product of its (nonzero) digits is 408240, while the sum is 50.

The square root of 2105980799 is about 45890.9664204187. The cubic root of 2105980799 is about 1281.7937089933.

The spelling of 2105980799 in words is "two billion, one hundred five million, nine hundred eighty thousand, seven hundred ninety-nine".