2647047685 has 16 divisors (see below), whose sum is σ = 3334510080. Its totient is φ = 2014585920.

The previous prime is 2647047677. The next prime is 2647047691. The reversal of 2647047685 is 5867407462.

It is not a de Polignac number, because 2647047685 - 2³ = 2647047677 is a prime.

It is a super-2 number, since 2×2647047685² = 14013722893327718450, which contains 22 as substring.

It is a congruent number.

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, 135582 + ... + 153871.

It is an arithmetic number, because the mean of its divisors is an integer number (208406880).

Almost surely, 2^2647047685 is an apocalyptic number.

It is an amenable number.

2647047685 is a deficient number, since it is larger than the sum of its proper divisors (687462395).

2647047685 is a wasteful number, since it uses less digits than its factorization.

2647047685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289548.

The product of its (nonzero) digits is 2257920, while the sum is 49.

The square root of 2647047685 is about 51449.4672955901. The cubic root of 2647047685 is about 1383.3134139807.

The spelling of 2647047685 in words is "two billion, six hundred forty-seven million, forty-seven thousand, six hundred eighty-five".