6971111801 has 2 divisors, whose sum is σ = 6971111802. Its totient is φ = 6971111800.

The previous prime is 6971111789. The next prime is 6971111803. The reversal of 6971111801 is 1081111796.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6876555625 + 94556176 = 82925^2 + 9724^2 .

It is a cyclic number.

It is not a de Polignac number, because 6971111801 - 2¹⁰ = 6971110777 is a prime.

Together with 6971111803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6971111803) 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, 3485555900 + 3485555901.

It is an arithmetic number, because the mean of its divisors is an integer number (3485555901).

Almost surely, 2^6971111801 is an apocalyptic number.

It is an amenable number.

6971111801 is a deficient number, since it is larger than the sum of its proper divisors (1).

6971111801 is an equidigital number, since it uses as much as digits as its factorization.

6971111801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 35.

The square root of 6971111801 is about 83493.1841589480. The cubic root of 6971111801 is about 1910.2960718082.

The spelling of 6971111801 in words is "six billion, nine hundred seventy-one million, one hundred eleven thousand, eight hundred one".