27332071721 has 4 divisors (see below), whose sum is σ = 27336356100. Its totient is φ = 27327787344.

The previous prime is 27332071709. The next prime is 27332071841. The reversal of 27332071721 is 12717023372.

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 276756496 + 27055315225 = 16636^2 + 164485^2 .

It is a cyclic number.

It is not a de Polignac number, because 27332071721 - 2¹⁰ = 27332070697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27332071021) 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, 2132606 + ... + 2145383.

It is an arithmetic number, because the mean of its divisors is an integer number (6834089025).

Almost surely, 2^27332071721 is an apocalyptic number.

It is an amenable number.

27332071721 is a deficient number, since it is larger than the sum of its proper divisors (4284379).

27332071721 is an equidigital number, since it uses as much as digits as its factorization.

27332071721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4284378.

The product of its (nonzero) digits is 24696, while the sum is 35.

The spelling of 27332071721 in words is "twenty-seven billion, three hundred thirty-two million, seventy-one thousand, seven hundred twenty-one".