6777387983 has 2 divisors, whose sum is σ = 6777387984. Its totient is φ = 6777387982.

The previous prime is 6777387979. The next prime is 6777388021. The reversal of 6777387983 is 3897837776.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6777387983 - 2² = 6777387979 is a prime.

It is a super-2 number, since 2×6777387983² = 91865975744225616578, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6777387283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3388693991 + 3388693992.

It is an arithmetic number, because the mean of its divisors is an integer number (3388693992).

Almost surely, 2^6777387983 is an apocalyptic number.

6777387983 is a deficient number, since it is larger than the sum of its proper divisors (1).

6777387983 is an equidigital number, since it uses as much as digits as its factorization.

6777387983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74680704, while the sum is 65.

The square root of 6777387983 is about 82324.8928514335. The cubic root of 6777387983 is about 1892.4341771496.

The spelling of 6777387983 in words is "six billion, seven hundred seventy-seven million, three hundred eighty-seven thousand, nine hundred eighty-three".