6251426647 has 2 divisors, whose sum is σ = 6251426648. Its totient is φ = 6251426646.

The previous prime is 6251426641. The next prime is 6251426651. The reversal of 6251426647 is 7466241526.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6251426647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6251426641) 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, 3125713323 + 3125713324.

It is an arithmetic number, because the mean of its divisors is an integer number (3125713324).

Almost surely, 2^6251426647 is an apocalyptic number.

6251426647 is a deficient number, since it is larger than the sum of its proper divisors (1).

6251426647 is an equidigital number, since it uses as much as digits as its factorization.

6251426647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 43.

The square root of 6251426647 is about 79065.9638972422. The cubic root of 6251426647 is about 1842.1558936571.

The spelling of 6251426647 in words is "six billion, two hundred fifty-one million, four hundred twenty-six thousand, six hundred forty-seven".