18234303337 has 4 divisors (see below), whose sum is σ = 18237817156. Its totient is φ = 18230789520.

The previous prime is 18234303319. The next prime is 18234303341. The reversal of 18234303337 is 73330343281.

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 6626611216 + 11607692121 = 81404^2 + 107739^2 .

It is a cyclic number.

It is not a de Polignac number, because 18234303337 - 2¹⁹ = 18233779049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18234303296 and 18234303305.

It is not an unprimeable number, because it can be changed into a prime (18234303397) 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, 1749114 + ... + 1759507.

It is an arithmetic number, because the mean of its divisors is an integer number (4559454289).

Almost surely, 2^18234303337 is an apocalyptic number.

It is an amenable number.

18234303337 is a deficient number, since it is larger than the sum of its proper divisors (3513819).

18234303337 is an equidigital number, since it uses as much as digits as its factorization.

18234303337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3513818.

The product of its (nonzero) digits is 108864, while the sum is 37.

The spelling of 18234303337 in words is "eighteen billion, two hundred thirty-four million, three hundred three thousand, three hundred thirty-seven".