6168920617 has 2 divisors, whose sum is σ = 6168920618. Its totient is φ = 6168920616.

The previous prime is 6168920591. The next prime is 6168920663. The reversal of 6168920617 is 7160298616.

It is an a-pointer prime, because the next prime (6168920663) can be obtained adding 6168920617 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4528751616 + 1640169001 = 67296^2 + 40499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6168920617 is a prime.

It is not a weakly prime, because it can be changed into another prime (6168927617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3084460308 + 3084460309.

It is an arithmetic number, because the mean of its divisors is an integer number (3084460309).

Almost surely, 2^6168920617 is an apocalyptic number.

It is an amenable number.

6168920617 is a deficient number, since it is larger than the sum of its proper divisors (1).

6168920617 is an equidigital number, since it uses as much as digits as its factorization.

6168920617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 6168920617 is about 78542.4765143040. The cubic root of 6168920617 is about 1834.0157483762.

The spelling of 6168920617 in words is "six billion, one hundred sixty-eight million, nine hundred twenty thousand, six hundred seventeen".