2108774868 has 24 divisors (see below), whose sum is σ = 5034905568. Its totient is φ = 686577696.

The previous prime is 2108774861. The next prime is 2108774879. The reversal of 2108774868 is 8684778012.

It is a self number, because there is not a number n which added to its sum of digits gives 2108774868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108774861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2042871 + ... + 2043902.

It is an arithmetic number, because the mean of its divisors is an integer number (209787732).

Almost surely, 2^2108774868 is an apocalyptic number.

It is an amenable number.

2108774868 is an abundant number, since it is smaller than the sum of its proper divisors (2926130700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2108774868 is a wasteful number, since it uses less digits than its factorization.

2108774868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4086823 (or 4086821 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 51.

The square root of 2108774868 is about 45921.3988027368. The cubic root of 2108774868 is about 1282.3603234301.

The spelling of 2108774868 in words is "two billion, one hundred eight million, seven hundred seventy-four thousand, eight hundred sixty-eight".