6468787679 has 2 divisors, whose sum is σ = 6468787680. Its totient is φ = 6468787678.

The previous prime is 6468787643. The next prime is 6468787687. The reversal of 6468787679 is 9767878646.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6468787679 - 2¹² = 6468783583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6468787279) 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, 3234393839 + 3234393840.

It is an arithmetic number, because the mean of its divisors is an integer number (3234393840).

Almost surely, 2^6468787679 is an apocalyptic number.

6468787679 is a deficient number, since it is larger than the sum of its proper divisors (1).

6468787679 is an equidigital number, since it uses as much as digits as its factorization.

6468787679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 170698752, while the sum is 68.

The square root of 6468787679 is about 80428.7739493771. The cubic root of 6468787679 is about 1863.2635961120.

The spelling of 6468787679 in words is "six billion, four hundred sixty-eight million, seven hundred eighty-seven thousand, six hundred seventy-nine".