8128263328 has 12 divisors (see below), whose sum is σ = 16002518490. Its totient is φ = 4064131648.

The previous prime is 8128263317. The next prime is 8128263337. The reversal of 8128263328 is 8233628218.

It can be written as a sum of positive squares in only one way, i.e., 6125879824 + 2002383504 = 78268^2 + 44748^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127004083 + ... + 127004146.

Almost surely, 2^8128263328 is an apocalyptic number.

It is an amenable number.

8128263328 is a deficient number, since it is larger than the sum of its proper divisors (7874255162).

8128263328 is a wasteful number, since it uses less digits than its factorization.

8128263328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254008239 (or 254008231 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 8128263328 is about 90156.8817561921. The cubic root of 8128263328 is about 2010.6319908988.

The spelling of 8128263328 in words is "eight billion, one hundred twenty-eight million, two hundred sixty-three thousand, three hundred twenty-eight".