8515282478 has 16 divisors (see below), whose sum is σ = 13522911120. Its totient is φ = 4010236416.

The previous prime is 8515282423. The next prime is 8515282513. The reversal of 8515282478 is 8742825158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641075 + ... + 654222.

It is an arithmetic number, because the mean of its divisors is an integer number (845181945).

Almost surely, 2^8515282478 is an apocalyptic number.

8515282478 is a deficient number, since it is larger than the sum of its proper divisors (5007628642).

8515282478 is a wasteful number, since it uses less digits than its factorization.

8515282478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295491.

The product of its digits is 1433600, while the sum is 50.

The square root of 8515282478 is about 92278.2882264295. The cubic root of 8515282478 is about 2042.0499128758.

The spelling of 8515282478 in words is "eight billion, five hundred fifteen million, two hundred eighty-two thousand, four hundred seventy-eight".