18485718196 has 48 divisors (see below), whose sum is σ = 37605097152. Its totient is φ = 7857907200.

The previous prime is 18485718187. The next prime is 18485718253. The reversal of 18485718196 is 69181758481.

It is a self number, because there is not a number n which added to its sum of digits gives 18485718196.

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, 38731 + ... + 196141.

It is an arithmetic number, because the mean of its divisors is an integer number (783439524).

Almost surely, 2^18485718196 is an apocalyptic number.

It is an amenable number.

18485718196 is an abundant number, since it is smaller than the sum of its proper divisors (19119378956).

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

18485718196 is a wasteful number, since it uses less digits than its factorization.

18485718196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157600 (or 157598 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 58.

The spelling of 18485718196 in words is "eighteen billion, four hundred eighty-five million, seven hundred eighteen thousand, one hundred ninety-six".