18382918292 has 12 divisors (see below), whose sum is σ = 32488623636. Its totient is φ = 9100454400.

The previous prime is 18382918283. The next prime is 18382918297. The reversal of 18382918292 is 29281928381.

It can be written as a sum of positive squares in 2 ways, for example, as 17201896336 + 1181021956 = 131156^2 + 34366^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18382918297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22750733 + ... + 22751540.

It is an arithmetic number, because the mean of its divisors is an integer number (2707385303).

Almost surely, 2^18382918292 is an apocalyptic number.

It is an amenable number.

18382918292 is a deficient number, since it is larger than the sum of its proper divisors (14105705344).

18382918292 is a wasteful number, since it uses less digits than its factorization.

18382918292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45502378 (or 45502376 counting only the distinct ones).

The product of its digits is 995328, while the sum is 53.

The spelling of 18382918292 in words is "eighteen billion, three hundred eighty-two million, nine hundred eighteen thousand, two hundred ninety-two".