6818242631 has 2 divisors, whose sum is σ = 6818242632. Its totient is φ = 6818242630.

The previous prime is 6818242621. The next prime is 6818242661. The reversal of 6818242631 is 1362428186.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6818242631 is a prime.

It is a super-2 number, since 2×6818242631² = 92976865150371604322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6818242621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3409121315 + 3409121316.

It is an arithmetic number, because the mean of its divisors is an integer number (3409121316).

Almost surely, 2^6818242631 is an apocalyptic number.

6818242631 is a deficient number, since it is larger than the sum of its proper divisors (1).

6818242631 is an equidigital number, since it uses as much as digits as its factorization.

6818242631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 41.

The square root of 6818242631 is about 82572.6506235570. The cubic root of 6818242631 is about 1896.2291444427.

The spelling of 6818242631 in words is "six billion, eight hundred eighteen million, two hundred forty-two thousand, six hundred thirty-one".