27727126447 has 2 divisors, whose sum is σ = 27727126448. Its totient is φ = 27727126446.

The previous prime is 27727126421. The next prime is 27727126459. The reversal of 27727126447 is 74462172772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27727126447 - 2¹⁵ = 27727093679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27727126447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27727126487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13863563223 + 13863563224.

It is an arithmetic number, because the mean of its divisors is an integer number (13863563224).

Almost surely, 2^27727126447 is an apocalyptic number.

27727126447 is a deficient number, since it is larger than the sum of its proper divisors (1).

27727126447 is an equidigital number, since it uses as much as digits as its factorization.

27727126447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1843968, while the sum is 49.

The spelling of 27727126447 in words is "twenty-seven billion, seven hundred twenty-seven million, one hundred twenty-six thousand, four hundred forty-seven".