18578086708 has 12 divisors (see below), whose sum is σ = 32513196772. Its totient is φ = 9288601920.

The previous prime is 18578086697. The next prime is 18578086717. The reversal of 18578086708 is 80768087581.

It can be written as a sum of positive squares in 2 ways, for example, as 9507810064 + 9070276644 = 97508^2 + 95238^2 .

It is a congruent number.

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, 4353 + ... + 192808.

Almost surely, 2^18578086708 is an apocalyptic number.

It is an amenable number.

18578086708 is a deficient number, since it is larger than the sum of its proper divisors (13935110064).

18578086708 is a wasteful number, since it uses less digits than its factorization.

18578086708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220722 (or 220720 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 58.

The spelling of 18578086708 in words is "eighteen billion, five hundred seventy-eight million, eighty-six thousand, seven hundred eight".