6881553313 has 2 divisors, whose sum is σ = 6881553314. Its totient is φ = 6881553312.

The previous prime is 6881553307. The next prime is 6881553421. The reversal of 6881553313 is 3133551886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6396320529 + 485232784 = 79977^2 + 22028^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6881553313 is a prime.

It is a super-2 number, since 2×6881553313² = 94711551999322551938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6881553313.

It is not a weakly prime, because it can be changed into another prime (6881553113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3440776656 + 3440776657.

It is an arithmetic number, because the mean of its divisors is an integer number (3440776657).

Almost surely, 2^6881553313 is an apocalyptic number.

It is an amenable number.

6881553313 is a deficient number, since it is larger than the sum of its proper divisors (1).

6881553313 is an equidigital number, since it uses as much as digits as its factorization.

6881553313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 43.

The square root of 6881553313 is about 82955.1283104306. The cubic root of 6881553313 is about 1902.0802067051.

The spelling of 6881553313 in words is "six billion, eight hundred eighty-one million, five hundred fifty-three thousand, three hundred thirteen".