2686863807 has 12 divisors (see below), whose sum is σ = 3907074600. Its totient is φ = 1779219888.

The previous prime is 2686863797. The next prime is 2686863857. The reversal of 2686863807 is 7083686862.

It is a happy number.

It is not a de Polignac number, because 2686863807 - 2⁴ = 2686863791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686863857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1000473 + ... + 1003154.

It is an arithmetic number, because the mean of its divisors is an integer number (325589550).

Almost surely, 2^2686863807 is an apocalyptic number.

2686863807 is a deficient number, since it is larger than the sum of its proper divisors (1220210793).

2686863807 is a wasteful number, since it uses less digits than its factorization.

2686863807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003782 (or 2003779 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The square root of 2686863807 is about 51834.9670299885. The cubic root of 2686863807 is about 1390.2147257256.

The spelling of 2686863807 in words is "two billion, six hundred eighty-six million, eight hundred sixty-three thousand, eight hundred seven".