27706126493 has 2 divisors, whose sum is σ = 27706126494. Its totient is φ = 27706126492.

The previous prime is 27706126447. The next prime is 27706126507. The reversal of 27706126493 is 39462160772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27543385444 + 162741049 = 165962^2 + 12757^2 .

It is a cyclic number.

It is not a de Polignac number, because 27706126493 - 2⁶ = 27706126429 is a prime.

It is a super-2 number, since 2×27706126493² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27706126793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13853063246 + 13853063247.

It is an arithmetic number, because the mean of its divisors is an integer number (13853063247).

Almost surely, 2^27706126493 is an apocalyptic number.

It is an amenable number.

27706126493 is a deficient number, since it is larger than the sum of its proper divisors (1).

27706126493 is an equidigital number, since it uses as much as digits as its factorization.

27706126493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 47.

The spelling of 27706126493 in words is "twenty-seven billion, seven hundred six million, one hundred twenty-six thousand, four hundred ninety-three".