8518779392 has 30 divisors (see below), whose sum is σ = 17025094383. Its totient is φ = 4258345472.

The previous prime is 8518779391. The next prime is 8518779403. The reversal of 8518779392 is 2939778158.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 4259389696 + 4259389696 = 65264^2 + 65264^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=65264.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8518779391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2086409 + ... + 2090487.

Almost surely, 2^8518779392 is an apocalyptic number.

It is an amenable number.

8518779392 is a deficient number, since it is larger than the sum of its proper divisors (8506314991).

8518779392 is an frugal number, since it uses more digits than its factorization.

8518779392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8176 (or 4081 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 59.

The square root of 8518779392 is about 92297.2339347177. The cubic root of 8518779392 is about 2042.3294062719.

The spelling of 8518779392 in words is "eight billion, five hundred eighteen million, seven hundred seventy-nine thousand, three hundred ninety-two".