30975493859 has 2 divisors, whose sum is σ = 30975493860. Its totient is φ = 30975493858.

The previous prime is 30975493853. The next prime is 30975493897. The reversal of 30975493859 is 95839457903.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30975493859 is a prime.

It is not a weakly prime, because it can be changed into another prime (30975493853) 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, 15487746929 + 15487746930.

It is an arithmetic number, because the mean of its divisors is an integer number (15487746930).

Almost surely, 2^30975493859 is an apocalyptic number.

30975493859 is a deficient number, since it is larger than the sum of its proper divisors (1).

30975493859 is an equidigital number, since it uses as much as digits as its factorization.

30975493859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36741600, while the sum is 62.

The spelling of 30975493859 in words is "thirty billion, nine hundred seventy-five million, four hundred ninety-three thousand, eight hundred fifty-nine".