18356983559798 has 32 divisors (see below), whose sum is σ = 30141779240160. Its totient is φ = 8332990018560.

The previous prime is 18356983559779. The next prime is 18356983559851. The reversal of 18356983559798 is 89795538965381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23189798 + ... + 23968326.

It is an arithmetic number, because the mean of its divisors is an integer number (941930601255).

Almost surely, 2^{18356983559798} is an apocalyptic number.

18356983559798 is a deficient number, since it is larger than the sum of its proper divisors (11784795680362).

18356983559798 is a wasteful number, since it uses less digits than its factorization.

18356983559798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793472.

The product of its digits is 17635968000, while the sum is 86.

The spelling of 18356983559798 in words is "eighteen trillion, three hundred fifty-six billion, nine hundred eighty-three million, five hundred fifty-nine thousand, seven hundred ninety-eight".