6216694856 has 16 divisors (see below), whose sum is σ = 11787273900. Its totient is φ = 3073421824.

The previous prime is 6216694829. The next prime is 6216694877. The reversal of 6216694856 is 6584966126.

It can be written as a sum of positive squares in 2 ways, for example, as 6151892356 + 64802500 = 78434^2 + 8050^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6216694798 and 6216694807.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4364945 + ... + 4366368.

Almost surely, 2^6216694856 is an apocalyptic number.

It is an amenable number.

6216694856 is a deficient number, since it is larger than the sum of its proper divisors (5570579044).

6216694856 is a wasteful number, since it uses less digits than its factorization.

6216694856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8731408 (or 8731404 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The square root of 6216694856 is about 78846.0199122315. The cubic root of 6216694856 is about 1838.7379948944.

The spelling of 6216694856 in words is "six billion, two hundred sixteen million, six hundred ninety-four thousand, eight hundred fifty-six".