8534564878 has 64 divisors (see below), whose sum is σ = 15280773120. Its totient is φ = 3499621632.

The previous prime is 8534564861. The next prime is 8534564917. The reversal of 8534564878 is 8784654358.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5996875 + ... + 5998297.

It is an arithmetic number, because the mean of its divisors is an integer number (238762080).

Almost surely, 2^8534564878 is an apocalyptic number.

8534564878 is a deficient number, since it is larger than the sum of its proper divisors (6746208242).

8534564878 is a wasteful number, since it uses less digits than its factorization.

8534564878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681.

The product of its digits is 25804800, while the sum is 58.

The square root of 8534564878 is about 92382.7087608931. The cubic root of 8534564878 is about 2043.5901216846.

The spelling of 8534564878 in words is "eight billion, five hundred thirty-four million, five hundred sixty-four thousand, eight hundred seventy-eight".