30806163617 has 2 divisors, whose sum is σ = 30806163618. Its totient is φ = 30806163616.

The previous prime is 30806163571. The next prime is 30806163643. The reversal of 30806163617 is 71636160803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28919043136 + 1887120481 = 170056^2 + 43441^2 .

It is a cyclic number.

It is not a de Polignac number, because 30806163617 - 2¹² = 30806159521 is a prime.

It is not a weakly prime, because it can be changed into another prime (30806463617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15403081808 + 15403081809.

It is an arithmetic number, because the mean of its divisors is an integer number (15403081809).

Almost surely, 2^30806163617 is an apocalyptic number.

It is an amenable number.

30806163617 is a deficient number, since it is larger than the sum of its proper divisors (1).

30806163617 is an equidigital number, since it uses as much as digits as its factorization.

30806163617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 30806163617 in words is "thirty billion, eight hundred six million, one hundred sixty-three thousand, six hundred seventeen".