2008777986 has 12 divisors (see below), whose sum is σ = 4352352342. Its totient is φ = 669592656.

The previous prime is 2008777943. The next prime is 2008777999. The reversal of 2008777986 is 6897778002.

2008777986 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1975358025 + 33419961 = 44445^2 + 5781^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55799371 + ... + 55799406.

Almost surely, 2^2008777986 is an apocalyptic number.

2008777986 is an abundant number, since it is smaller than the sum of its proper divisors (2343574356).

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

2008777986 is a wasteful number, since it uses less digits than its factorization.

2008777986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111598785 (or 111598782 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 54.

The square root of 2008777986 is about 44819.3929677768. The cubic root of 2008777986 is about 1261.7616213199.

The spelling of 2008777986 in words is "two billion, eight million, seven hundred seventy-seven thousand, nine hundred eighty-six".