6740079881 has 2 divisors, whose sum is σ = 6740079882. Its totient is φ = 6740079880.

The previous prime is 6740079859. The next prime is 6740079949. The reversal of 6740079881 is 1889700476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5530153225 + 1209926656 = 74365^2 + 34784^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6740079881 is a prime.

It is a super-2 number, since 2×6740079881² = 90857353604521948322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6740078881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3370039940 + 3370039941.

It is an arithmetic number, because the mean of its divisors is an integer number (3370039941).

Almost surely, 2^6740079881 is an apocalyptic number.

It is an amenable number.

6740079881 is a deficient number, since it is larger than the sum of its proper divisors (1).

6740079881 is an equidigital number, since it uses as much as digits as its factorization.

6740079881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 6740079881 is about 82097.9895064428. The cubic root of 6740079881 is about 1888.9553011699.

The spelling of 6740079881 in words is "six billion, seven hundred forty million, seventy-nine thousand, eight hundred eighty-one".