6617442863 has 2 divisors, whose sum is σ = 6617442864. Its totient is φ = 6617442862.

The previous prime is 6617442851. The next prime is 6617442877. The reversal of 6617442863 is 3682447166.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6617442863 - 2²⁰ = 6616394287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6617442803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3308721431 + 3308721432.

It is an arithmetic number, because the mean of its divisors is an integer number (3308721432).

Almost surely, 2^6617442863 is an apocalyptic number.

6617442863 is a deficient number, since it is larger than the sum of its proper divisors (1).

6617442863 is an equidigital number, since it uses as much as digits as its factorization.

6617442863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 47.

The square root of 6617442863 is about 81347.6666106656. Note that the first 4 decimals coincide. The cubic root of 6617442863 is about 1877.4284729220.

The spelling of 6617442863 in words is "six billion, six hundred seventeen million, four hundred forty-two thousand, eight hundred sixty-three".