27707163437 has 2 divisors, whose sum is σ = 27707163438. Its totient is φ = 27707163436.

The previous prime is 27707163413. The next prime is 27707163439. The reversal of 27707163437 is 73436170772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22724356516 + 4982806921 = 150746^2 + 70589^2 .

It is a cyclic number.

It is not a de Polignac number, because 27707163437 - 2¹⁴ = 27707147053 is a prime.

It is a super-3 number, since 3×27707163437³ (a number of 32 digits) contains 333 as substring.

Together with 27707163439, 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 = 27707163391 and 27707163400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27707163439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13853581718 + 13853581719.

It is an arithmetic number, because the mean of its divisors is an integer number (13853581719).

Almost surely, 2^27707163437 is an apocalyptic number.

It is an amenable number.

27707163437 is a deficient number, since it is larger than the sum of its proper divisors (1).

27707163437 is an equidigital number, since it uses as much as digits as its factorization.

27707163437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1037232, while the sum is 47.

The spelling of 27707163437 in words is "twenty-seven billion, seven hundred seven million, one hundred sixty-three thousand, four hundred thirty-seven".