6424857613 has 2 divisors, whose sum is σ = 6424857614. Its totient is φ = 6424857612.

The previous prime is 6424857587. The next prime is 6424857661. The reversal of 6424857613 is 3167584246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3687161284 + 2737696329 = 60722^2 + 52323^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6424857613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6424857713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3212428806 + 3212428807.

It is an arithmetic number, because the mean of its divisors is an integer number (3212428807).

Almost surely, 2^6424857613 is an apocalyptic number.

It is an amenable number.

6424857613 is a deficient number, since it is larger than the sum of its proper divisors (1).

6424857613 is an equidigital number, since it uses as much as digits as its factorization.

6424857613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 46.

The square root of 6424857613 is about 80155.2095187830. The cubic root of 6424857613 is about 1859.0361535125.

The spelling of 6424857613 in words is "six billion, four hundred twenty-four million, eight hundred fifty-seven thousand, six hundred thirteen".