6172356856 has 16 divisors (see below), whose sum is σ = 11578263840. Its totient is φ = 3084819840.

The previous prime is 6172356847. The next prime is 6172356857. The reversal of 6172356856 is 6586532716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6172356857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150385 + ... + 186976.

It is an arithmetic number, because the mean of its divisors is an integer number (723641490).

Almost surely, 2^6172356856 is an apocalyptic number.

It is an amenable number.

6172356856 is a deficient number, since it is larger than the sum of its proper divisors (5405906984).

6172356856 is a wasteful number, since it uses less digits than its factorization.

6172356856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339654 (or 339650 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 49.

The square root of 6172356856 is about 78564.3485049039. The cubic root of 6172356856 is about 1834.3562156448.

The spelling of 6172356856 in words is "six billion, one hundred seventy-two million, three hundred fifty-six thousand, eight hundred fifty-six".