30851173124459 has 2 divisors, whose sum is σ = 30851173124460. Its totient is φ = 30851173124458.

The previous prime is 30851173124437. The next prime is 30851173124491. The reversal of 30851173124459 is 95442137115803.

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-30851173124459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30851173124459.

It is not a weakly prime, because it can be changed into another prime (30851173124419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15425586562229 + 15425586562230.

It is an arithmetic number, because the mean of its divisors is an integer number (15425586562230).

Almost surely, 2^{30851173124459} is an apocalyptic number.

30851173124459 is a deficient number, since it is larger than the sum of its proper divisors (1).

30851173124459 is an equidigital number, since it uses as much as digits as its factorization.

30851173124459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 30851173124459 in words is "thirty trillion, eight hundred fifty-one billion, one hundred seventy-three million, one hundred twenty-four thousand, four hundred fifty-nine".