8187273834 has 8 divisors (see below), whose sum is σ = 16374547680. Its totient is φ = 2729091276.

The previous prime is 8187273833. The next prime is 8187273847. The reversal of 8187273834 is 4383727818.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

8187273834 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8187273833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682272814 + ... + 682272825.

It is an arithmetic number, because the mean of its divisors is an integer number (2046818460).

Almost surely, 2^8187273834 is an apocalyptic number.

8187273834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8187273834 is a wasteful number, since it uses less digits than its factorization.

8187273834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364545644.

The product of its digits is 1806336, while the sum is 51.

The square root of 8187273834 is about 90483.5555998989. Note that the first 4 decimals coincide. The cubic root of 8187273834 is about 2015.4859362437.

The spelling of 8187273834 in words is "eight billion, one hundred eighty-seven million, two hundred seventy-three thousand, eight hundred thirty-four".