6858811361 has 2 divisors, whose sum is σ = 6858811362. Its totient is φ = 6858811360.

The previous prime is 6858811327. The next prime is 6858811423. The reversal of 6858811361 is 1631188586.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5452936336 + 1405875025 = 73844^2 + 37495^2 .

It is a cyclic number.

It is not a de Polignac number, because 6858811361 - 2²⁶ = 6791702497 is a prime.

It is not a weakly prime, because it can be changed into another prime (6858813361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3429405680 + 3429405681.

It is an arithmetic number, because the mean of its divisors is an integer number (3429405681).

Almost surely, 2^6858811361 is an apocalyptic number.

It is an amenable number.

6858811361 is a deficient number, since it is larger than the sum of its proper divisors (1).

6858811361 is an equidigital number, since it uses as much as digits as its factorization.

6858811361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 47.

The square root of 6858811361 is about 82817.9410574786. The cubic root of 6858811361 is about 1899.9825816501.

The spelling of 6858811361 in words is "six billion, eight hundred fifty-eight million, eight hundred eleven thousand, three hundred sixty-one".