18084094837 has 4 divisors (see below), whose sum is σ = 18110966380. Its totient is φ = 18057223296.

The previous prime is 18084094823. The next prime is 18084094841. The reversal of 18084094837 is 73849048081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3801215716 + 14282879121 = 61654^2 + 119511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18084094837 is a prime.

It is a super-2 number, since 2×18084094837² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18084094817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13434762 + ... + 13436107.

It is an arithmetic number, because the mean of its divisors is an integer number (4527741595).

Almost surely, 2^18084094837 is an apocalyptic number.

It is an amenable number.

18084094837 is a deficient number, since it is larger than the sum of its proper divisors (26871543).

18084094837 is an equidigital number, since it uses as much as digits as its factorization.

18084094837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26871542.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 18084094837 in words is "eighteen billion, eighty-four million, ninety-four thousand, eight hundred thirty-seven".