2108788986 has 16 divisors (see below), whose sum is σ = 4439556000. Its totient is φ = 665933328.

The previous prime is 2108788951. The next prime is 2108789003. The reversal of 2108788986 is 6898878012.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9248961 + ... + 9249188.

It is an arithmetic number, because the mean of its divisors is an integer number (277472250).

Almost surely, 2^2108788986 is an apocalyptic number.

2108788986 is an abundant number, since it is smaller than the sum of its proper divisors (2330767014).

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

2108788986 is a wasteful number, since it uses less digits than its factorization.

2108788986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18498173.

The product of its (nonzero) digits is 3096576, while the sum is 57.

The square root of 2108788986 is about 45921.5525216646. The cubic root of 2108788986 is about 1282.3631851743.

The spelling of 2108788986 in words is "two billion, one hundred eight million, seven hundred eighty-eight thousand, nine hundred eighty-six".