2656218862 has 12 divisors (see below), whose sum is σ = 4379468688. Its totient is φ = 1207372100.

The previous prime is 2656218857. The next prime is 2656218889. The reversal of 2656218862 is 2688126562.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5487814 + ... + 5488297.

It is an arithmetic number, because the mean of its divisors is an integer number (364955724).

Almost surely, 2^2656218862 is an apocalyptic number.

2656218862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2656218862 is a deficient number, since it is larger than the sum of its proper divisors (1723249826).

2656218862 is a wasteful number, since it uses less digits than its factorization.

2656218862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10976135 (or 10976124 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 2656218862 is about 51538.5182363638. The cubic root of 2656218862 is about 1384.9091525948.

The spelling of 2656218862 in words is "two billion, six hundred fifty-six million, two hundred eighteen thousand, eight hundred sixty-two".