18132734573 has 4 divisors (see below), whose sum is σ = 18133124988. Its totient is φ = 18132344160.

The previous prime is 18132734539. The next prime is 18132734591. The reversal of 18132734573 is 37543723181.

It is a happy number.

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 9557604169 + 8575130404 = 97763^2 + 92602^2 .

It is a cyclic number.

It is not a de Polignac number, because 18132734573 - 2⁸ = 18132734317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18132734513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114386 + ... + 222147.

It is an arithmetic number, because the mean of its divisors is an integer number (4533281247).

Almost surely, 2^18132734573 is an apocalyptic number.

It is an amenable number.

18132734573 is a deficient number, since it is larger than the sum of its proper divisors (390415).

18132734573 is an equidigital number, since it uses as much as digits as its factorization.

18132734573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390414.

The product of its digits is 423360, while the sum is 44.

The spelling of 18132734573 in words is "eighteen billion, one hundred thirty-two million, seven hundred thirty-four thousand, five hundred seventy-three".