18792642842 has 16 divisors (see below), whose sum is σ = 29249301480. Its totient is φ = 9048112128.

The previous prime is 18792642793. The next prime is 18792642929. The reversal of 18792642842 is 24824629781.

It can be written as a sum of positive squares in 4 ways, for example, as 15697834681 + 3094808161 = 125291^2 + 55631^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1301867 + ... + 1316222.

Almost surely, 2^18792642842 is an apocalyptic number.

18792642842 is a deficient number, since it is larger than the sum of its proper divisors (10456658638).

18792642842 is a wasteful number, since it uses less digits than its factorization.

18792642842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618225.

The product of its digits is 3096576, while the sum is 53.

The spelling of 18792642842 in words is "eighteen billion, seven hundred ninety-two million, six hundred forty-two thousand, eight hundred forty-two".