8128368744 has 32 divisors (see below), whose sum is σ = 20704338720. Its totient is φ = 2658334016.

The previous prime is 8128368683. The next prime is 8128368749. The reversal of 8128368744 is 4478638218.

It is a super-2 number, since 2×8128368744² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8128368749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3193842 + ... + 3196385.

It is an arithmetic number, because the mean of its divisors is an integer number (647010585).

Almost surely, 2^8128368744 is an apocalyptic number.

It is an amenable number.

8128368744 is an abundant number, since it is smaller than the sum of its proper divisors (12575969976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8128368744 is a wasteful number, since it uses less digits than its factorization.

8128368744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390289 (or 6390285 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 51.

The square root of 8128368744 is about 90157.4663796626. The cubic root of 8128368744 is about 2010.6406828689.

The spelling of 8128368744 in words is "eight billion, one hundred twenty-eight million, three hundred sixty-eight thousand, seven hundred forty-four".