8022578864 has 20 divisors (see below), whose sum is σ = 15589880904. Its totient is φ = 3999383808.

The previous prime is 8022578833. The next prime is 8022578881. The reversal of 8022578864 is 4688752208.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 738542 + ... + 749325.

Almost surely, 2^8022578864 is an apocalyptic number.

It is an amenable number.

8022578864 is a deficient number, since it is larger than the sum of its proper divisors (7567302040).

8022578864 is a wasteful number, since it uses less digits than its factorization.

8022578864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488212 (or 1488206 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 50.

The square root of 8022578864 is about 89568.8498530600. The cubic root of 8022578864 is about 2001.8798046138.

The spelling of 8022578864 in words is "eight billion, twenty-two million, five hundred seventy-eight thousand, eight hundred sixty-four".