5127705647 has 2 divisors, whose sum is σ = 5127705648. Its totient is φ = 5127705646.

The previous prime is 5127705623. The next prime is 5127705677. The reversal of 5127705647 is 7465077215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5127705647 - 2³² = 832738351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5127705598 and 5127705607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5127705607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2563852823 + 2563852824.

It is an arithmetic number, because the mean of its divisors is an integer number (2563852824).

Almost surely, 2^5127705647 is an apocalyptic number.

5127705647 is a deficient number, since it is larger than the sum of its proper divisors (1).

5127705647 is an equidigital number, since it uses as much as digits as its factorization.

5127705647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 411600, while the sum is 44.

The square root of 5127705647 is about 71607.9998812982. Note that the first 3 decimals coincide. The cubic root of 5127705647 is about 1724.4119703477.

The spelling of 5127705647 in words is "five billion, one hundred twenty-seven million, seven hundred five thousand, six hundred forty-seven".