8515493792 has 24 divisors (see below), whose sum is σ = 18054485316. Its totient is φ = 3930227712.

The previous prime is 8515493747. The next prime is 8515493821. The reversal of 8515493792 is 2973945158.

It can be written as a sum of positive squares in 2 ways, for example, as 8514860176 + 633616 = 92276^2 + 796^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 10234553 + ... + 10235384.

Almost surely, 2^8515493792 is an apocalyptic number.

It is an amenable number.

8515493792 is an abundant number, since it is smaller than the sum of its proper divisors (9538991524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8515493792 is a wasteful number, since it uses less digits than its factorization.

8515493792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20469960 (or 20469952 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 53.

The square root of 8515493792 is about 92279.4332015536. The cubic root of 8515493792 is about 2042.0668044731.

The spelling of 8515493792 in words is "eight billion, five hundred fifteen million, four hundred ninety-three thousand, seven hundred ninety-two".