2105907795 has 32 divisors (see below), whose sum is σ = 3778209600. Its totient is φ = 1112838912.

The previous prime is 2105907781. The next prime is 2105907833. The reversal of 2105907795 is 5977095012.

It is not a de Polignac number, because 2105907795 - 2¹⁰ = 2105906771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2105907795.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 56842 + ... + 86271.

It is an arithmetic number, because the mean of its divisors is an integer number (118069050).

Almost surely, 2^2105907795 is an apocalyptic number.

2105907795 is a deficient number, since it is larger than the sum of its proper divisors (1672301805).

2105907795 is a wasteful number, since it uses less digits than its factorization.

2105907795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143236 (or 143230 counting only the distinct ones).

The product of its (nonzero) digits is 198450, while the sum is 45.

The square root of 2105907795 is about 45890.1710064367. The cubic root of 2105907795 is about 1281.7788976602.

The spelling of 2105907795 in words is "two billion, one hundred five million, nine hundred seven thousand, seven hundred ninety-five".