27374552237 has 2 divisors, whose sum is σ = 27374552238. Its totient is φ = 27374552236.

The previous prime is 27374552221. The next prime is 27374552239. The reversal of 27374552237 is 73225547372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17288568196 + 10085984041 = 131486^2 + 100429^2 .

It is a cyclic number.

It is not a de Polignac number, because 27374552237 - 2⁴ = 27374552221 is a prime.

It is a super-2 number, since 2×27374552237² (a number of 22 digits) contains 22 as substring.

Together with 27374552239, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27374552191 and 27374552200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27374552239) 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 as a sum of consecutive naturals, namely, 13687276118 + 13687276119.

It is an arithmetic number, because the mean of its divisors is an integer number (13687276119).

Almost surely, 2^27374552237 is an apocalyptic number.

It is an amenable number.

27374552237 is a deficient number, since it is larger than the sum of its proper divisors (1).

27374552237 is an equidigital number, since it uses as much as digits as its factorization.

27374552237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2469600, while the sum is 47.

The spelling of 27374552237 in words is "twenty-seven billion, three hundred seventy-four million, five hundred fifty-two thousand, two hundred thirty-seven".