6968811481 has 2 divisors, whose sum is σ = 6968811482. Its totient is φ = 6968811480.

The previous prime is 6968811463. The next prime is 6968811497. The reversal of 6968811481 is 1841188696.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3684490000 + 3284321481 = 60700^2 + 57309^2 .

It is a cyclic number.

It is not a de Polignac number, because 6968811481 - 2¹¹ = 6968809433 is a prime.

It is a super-2 number, since 2×6968811481² = 97128666915434826722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6968811461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3484405740 + 3484405741.

It is an arithmetic number, because the mean of its divisors is an integer number (3484405741).

Almost surely, 2^6968811481 is an apocalyptic number.

It is an amenable number.

6968811481 is a deficient number, since it is larger than the sum of its proper divisors (1).

6968811481 is an equidigital number, since it uses as much as digits as its factorization.

6968811481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 52.

The square root of 6968811481 is about 83479.4075266470. The cubic root of 6968811481 is about 1910.0859295423.

The spelling of 6968811481 in words is "six billion, nine hundred sixty-eight million, eight hundred eleven thousand, four hundred eighty-one".