2686664403 has 16 divisors (see below), whose sum is σ = 3988240000. Its totient is φ = 1787511240.

The previous prime is 2686664399. The next prime is 2686664443. The reversal of 2686664403 is 3044666862.

It is not a de Polignac number, because 2686664403 - 2² = 2686664399 is a prime.

It is a super-2 number, since 2×2686664403² = 14436331228694692818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2686664443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86233 + ... + 113178.

It is an arithmetic number, because the mean of its divisors is an integer number (249265000).

Almost surely, 2^2686664403 is an apocalyptic number.

2686664403 is a deficient number, since it is larger than the sum of its proper divisors (1301575597).

2686664403 is a wasteful number, since it uses less digits than its factorization.

2686664403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199919 (or 199913 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The square root of 2686664403 is about 51833.0435436701. The cubic root of 2686664403 is about 1390.1803335550.

The spelling of 2686664403 in words is "two billion, six hundred eighty-six million, six hundred sixty-four thousand, four hundred three".