8028388868 has 6 divisors (see below), whose sum is σ = 14049680526. Its totient is φ = 4014194432.

The previous prime is 8028388859. The next prime is 8028388909. The reversal of 8028388868 is 8688838208.

It can be written as a sum of positive squares in only one way, i.e., 6407682304 + 1620706564 = 80048^2 + 40258^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003548605 + ... + 1003548612.

It is an arithmetic number, because the mean of its divisors is an integer number (2341613421).

Almost surely, 2^8028388868 is an apocalyptic number.

It is an amenable number.

8028388868 is a deficient number, since it is larger than the sum of its proper divisors (6021291658).

8028388868 is a wasteful number, since it uses less digits than its factorization.

8028388868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007097221 (or 2007097219 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 59.

The square root of 8028388868 is about 89601.2771560763. The cubic root of 8028388868 is about 2002.3629461433.

The spelling of 8028388868 in words is "eight billion, twenty-eight million, three hundred eighty-eight thousand, eight hundred sixty-eight".