6376860649 has 2 divisors, whose sum is σ = 6376860650. Its totient is φ = 6376860648.

The previous prime is 6376860629. The next prime is 6376860661. The reversal of 6376860649 is 9460686736.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6361179049 + 15681600 = 79757^2 + 3960^2 .

It is a cyclic number.

It is not a de Polignac number, because 6376860649 - 2⁹ = 6376860137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6376860649.

It is not a weakly prime, because it can be changed into another prime (6376860629) 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, 3188430324 + 3188430325.

It is an arithmetic number, because the mean of its divisors is an integer number (3188430325).

Almost surely, 2^6376860649 is an apocalyptic number.

It is an amenable number.

6376860649 is a deficient number, since it is larger than the sum of its proper divisors (1).

6376860649 is an equidigital number, since it uses as much as digits as its factorization.

6376860649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7838208, while the sum is 55.

The square root of 6376860649 is about 79855.2480992953. The cubic root of 6376860649 is about 1854.3952614945.

The spelling of 6376860649 in words is "six billion, three hundred seventy-six million, eight hundred sixty thousand, six hundred forty-nine".