6849866623 has 2 divisors, whose sum is σ = 6849866624. Its totient is φ = 6849866622.

The previous prime is 6849866537. The next prime is 6849866633. The reversal of 6849866623 is 3266689486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6849866623 - 2²¹ = 6847769471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6849866633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3424933311 + 3424933312.

It is an arithmetic number, because the mean of its divisors is an integer number (3424933312).

Almost surely, 2^6849866623 is an apocalyptic number.

6849866623 is a deficient number, since it is larger than the sum of its proper divisors (1).

6849866623 is an equidigital number, since it uses as much as digits as its factorization.

6849866623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17915904, while the sum is 58.

The square root of 6849866623 is about 82763.9210223875. The cubic root of 6849866623 is about 1899.1562849517.

The spelling of 6849866623 in words is "six billion, eight hundred forty-nine million, eight hundred sixty-six thousand, six hundred twenty-three".