6379916887 has 2 divisors, whose sum is σ = 6379916888. Its totient is φ = 6379916886.

The previous prime is 6379916867. The next prime is 6379916891. The reversal of 6379916887 is 7886199736.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6379916887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6379916867) 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, 3189958443 + 3189958444.

It is an arithmetic number, because the mean of its divisors is an integer number (3189958444).

Almost surely, 2^6379916887 is an apocalyptic number.

6379916887 is a deficient number, since it is larger than the sum of its proper divisors (1).

6379916887 is an equidigital number, since it uses as much as digits as its factorization.

6379916887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27433728, while the sum is 64.

The square root of 6379916887 is about 79874.3819193614. The cubic root of 6379916887 is about 1854.6914661842.

The spelling of 6379916887 in words is "six billion, three hundred seventy-nine million, nine hundred sixteen thousand, eight hundred eighty-seven".