27321798343 has 4 divisors (see below), whose sum is σ = 31224912400. Its totient is φ = 23418684288.

The previous prime is 27321798311. The next prime is 27321798349. The reversal of 27321798343 is 34389712372.

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

It is a cyclic number.

It is not a de Polignac number, because 27321798343 - 2⁵ = 27321798311 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 (27321798349) 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, 1951557018 + ... + 1951557031.

It is an arithmetic number, because the mean of its divisors is an integer number (7806228100).

Almost surely, 2^27321798343 is an apocalyptic number.

27321798343 is a deficient number, since it is larger than the sum of its proper divisors (3903114057).

27321798343 is an equidigital number, since it uses as much as digits as its factorization.

27321798343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903114056.

The product of its digits is 1524096, while the sum is 49.

The spelling of 27321798343 in words is "twenty-seven billion, three hundred twenty-one million, seven hundred ninety-eight thousand, three hundred forty-three".