18073591300 has 72 divisors (see below), whose sum is σ = 40280125032. Its totient is φ = 7034880000.

The previous prime is 18073591273. The next prime is 18073591301. The reversal of 18073591300 is 319537081.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 6723672004 + 11349919296 = 81998^2 + 106536^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18073591300.

It is not an unprimeable number, because it can be changed into a prime (18073591301) 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 23 ways as a sum of consecutive naturals, for example, 1638604 + ... + 1649596.

It is an arithmetic number, because the mean of its divisors is an integer number (559446181).

Almost surely, 2^18073591300 is an apocalyptic number.

18073591300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18073591300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20140062516).

18073591300 is an abundant number, since it is smaller than the sum of its proper divisors (22206533732).

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

18073591300 is a wasteful number, since it uses less digits than its factorization.

18073591300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11449 (or 11442 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 18073591300 in words is "eighteen billion, seventy-three million, five hundred ninety-one thousand, three hundred".