6249680639 has 2 divisors, whose sum is σ = 6249680640. Its totient is φ = 6249680638.

The previous prime is 6249680627. The next prime is 6249680683. The reversal of 6249680639 is 9360869426.

6249680639 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6249680639 - 2¹⁶ = 6249615103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6249683639) 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, 3124840319 + 3124840320.

It is an arithmetic number, because the mean of its divisors is an integer number (3124840320).

Almost surely, 2^6249680639 is an apocalyptic number.

6249680639 is a deficient number, since it is larger than the sum of its proper divisors (1).

6249680639 is an equidigital number, since it uses as much as digits as its factorization.

6249680639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3359232, while the sum is 53.

The square root of 6249680639 is about 79054.9216620951. The cubic root of 6249680639 is about 1841.9843744929.

The spelling of 6249680639 in words is "six billion, two hundred forty-nine million, six hundred eighty thousand, six hundred thirty-nine".