2686981268 has 12 divisors (see below), whose sum is σ = 4711644000. Its totient is φ = 1340797272.

The previous prime is 2686981261. The next prime is 2686981277. The reversal of 2686981268 is 8621896862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686981261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671096 + ... + 675087.

It is an arithmetic number, because the mean of its divisors is an integer number (392637000).

Almost surely, 2^2686981268 is an apocalyptic number.

It is an amenable number.

2686981268 is a deficient number, since it is larger than the sum of its proper divisors (2024662732).

2686981268 is a wasteful number, since it uses less digits than its factorization.

2686981268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346686 (or 1346684 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 56.

The square root of 2686981268 is about 51836.1000462033. The cubic root of 2686981268 is about 1390.2349839950.

The spelling of 2686981268 in words is "two billion, six hundred eighty-six million, nine hundred eighty-one thousand, two hundred sixty-eight".