18533783796 has 48 divisors (see below), whose sum is σ = 47186979840. Its totient is φ = 5615098720.

The previous prime is 18533783789. The next prime is 18533783819. The reversal of 18533783796 is 69738733581.

It is a super-2 number, since 2×18533783796² (a number of 21 digits) contains 22 as substring.

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, 754435 + ... + 778613.

It is an arithmetic number, because the mean of its divisors is an integer number (983062080).

Almost surely, 2^18533783796 is an apocalyptic number.

It is an amenable number.

18533783796 is an abundant number, since it is smaller than the sum of its proper divisors (28653196044).

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

18533783796 is a wasteful number, since it uses less digits than its factorization.

18533783796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30004 (or 30002 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 60.

The spelling of 18533783796 in words is "eighteen billion, five hundred thirty-three million, seven hundred eighty-three thousand, seven hundred ninety-six".