6172081688 has 32 divisors (see below), whose sum is σ = 11744883360. Its totient is φ = 3040181760.

The previous prime is 6172081681. The next prime is 6172081711. The reversal of 6172081688 is 8861802716.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6172081681) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 878606 + ... + 885602.

It is an arithmetic number, because the mean of its divisors is an integer number (367027605).

Almost surely, 2^6172081688 is an apocalyptic number.

It is an amenable number.

6172081688 is a deficient number, since it is larger than the sum of its proper divisors (5572801672).

6172081688 is a wasteful number, since it uses less digits than its factorization.

6172081688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8627 (or 8623 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 6172081688 is about 78562.5972584919. The cubic root of 6172081688 is about 1834.3289562773.

The spelling of 6172081688 in words is "six billion, one hundred seventy-two million, eighty-one thousand, six hundred eighty-eight".