6427957717 has 2 divisors, whose sum is σ = 6427957718. Its totient is φ = 6427957716.

The previous prime is 6427957693. The next prime is 6427957741. The reversal of 6427957717 is 7177597246.

It is a balanced prime because it is at equal distance from previous prime (6427957693) and next prime (6427957741).

It can be written as a sum of positive squares in only one way, i.e., 3437945956 + 2990011761 = 58634^2 + 54681^2 .

It is a cyclic number.

It is not a de Polignac number, because 6427957717 - 2⁷ = 6427957589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6427957747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213978858 + 3213978859.

It is an arithmetic number, because the mean of its divisors is an integer number (3213978859).

Almost surely, 2^6427957717 is an apocalyptic number.

It is an amenable number.

6427957717 is a deficient number, since it is larger than the sum of its proper divisors (1).

6427957717 is an equidigital number, since it uses as much as digits as its factorization.

6427957717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5186160, while the sum is 55.

The square root of 6427957717 is about 80174.5453183241. The cubic root of 6427957717 is about 1859.3351110439.

The spelling of 6427957717 in words is "six billion, four hundred twenty-seven million, nine hundred fifty-seven thousand, seven hundred seventeen".