18092749312 has 80 divisors (see below), whose sum is σ = 40105692000. Its totient is φ = 8084439040.

The previous prime is 18092749289. The next prime is 18092749319. The reversal of 18092749312 is 21394729081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18092749319) by changing a digit.

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, 305064 + ... + 359512.

It is an arithmetic number, because the mean of its divisors is an integer number (501321150).

Almost surely, 2^18092749312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18092749312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20052846000).

18092749312 is an abundant number, since it is smaller than the sum of its proper divisors (22012942688).

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

18092749312 is an equidigital number, since it uses as much as digits as its factorization.

18092749312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54537 (or 54521 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 18092749312 in words is "eighteen billion, ninety-two million, seven hundred forty-nine thousand, three hundred twelve".