30849205617 has 8 divisors (see below), whose sum is σ = 45702526880. Its totient is φ = 20566137060.

The previous prime is 30849205603. The next prime is 30849205679. The reversal of 30849205617 is 71650294803.

30849205617 is a `hidden beast` number, since 3 + 0 + 8 + 4 + 9 + 20 + 5 + 617 = 666.

It is not a de Polignac number, because 30849205617 - 2⁷ = 30849205489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30849205217) 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 in 7 ways as a sum of consecutive naturals, for example, 571281559 + ... + 571281612.

It is an arithmetic number, because the mean of its divisors is an integer number (5712815860).

It is a 1-persistent number, because it is pandigital, but 2⋅30849205617 = 61698411234 is not.

Almost surely, 2^30849205617 is an apocalyptic number.

It is an amenable number.

30849205617 is a deficient number, since it is larger than the sum of its proper divisors (14853321263).

30849205617 is a wasteful number, since it uses less digits than its factorization.

30849205617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142563180 (or 1142563174 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 30849205617 in words is "thirty billion, eight hundred forty-nine million, two hundred five thousand, six hundred seventeen".