30880784317 has 2 divisors, whose sum is σ = 30880784318. Its totient is φ = 30880784316.

The previous prime is 30880784281. The next prime is 30880784413. The reversal of 30880784317 is 71348708803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21069683716 + 9811100601 = 145154^2 + 99051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30880784317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30880784017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15440392158 + 15440392159.

It is an arithmetic number, because the mean of its divisors is an integer number (15440392159).

Almost surely, 2^30880784317 is an apocalyptic number.

It is an amenable number.

30880784317 is a deficient number, since it is larger than the sum of its proper divisors (1).

30880784317 is an equidigital number, since it uses as much as digits as its factorization.

30880784317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 30880784317 in words is "thirty billion, eight hundred eighty million, seven hundred eighty-four thousand, three hundred seventeen".