2680866385 has 16 divisors (see below), whose sum is σ = 3335230080. Its totient is φ = 2067160960.

The previous prime is 2680866359. The next prime is 2680866421. The reversal of 2680866385 is 5836680862.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2680866385 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 61765 + ... + 95794.

It is an arithmetic number, because the mean of its divisors is an integer number (208451880).

Almost surely, 2^2680866385 is an apocalyptic number.

It is an amenable number.

2680866385 is a deficient number, since it is larger than the sum of its proper divisors (654363695).

2680866385 is a wasteful number, since it uses less digits than its factorization.

2680866385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157688.

The product of its (nonzero) digits is 3317760, while the sum is 52.

The square root of 2680866385 is about 51777.0835891710. The cubic root of 2680866385 is about 1389.1795764102.

The spelling of 2680866385 in words is "two billion, six hundred eighty million, eight hundred sixty-six thousand, three hundred eighty-five".