30912828361 has 2 divisors, whose sum is σ = 30912828362. Its totient is φ = 30912828360.

The previous prime is 30912828329. The next prime is 30912828451. The reversal of 30912828361 is 16382821903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28205187136 + 2707641225 = 167944^2 + 52035^2 .

It is a cyclic number.

It is not a de Polignac number, because 30912828361 - 2⁵ = 30912828329 is a prime.

It is not a weakly prime, because it can be changed into another prime (30912828301) 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, 15456414180 + 15456414181.

It is an arithmetic number, because the mean of its divisors is an integer number (15456414181).

Almost surely, 2^30912828361 is an apocalyptic number.

It is an amenable number.

30912828361 is a deficient number, since it is larger than the sum of its proper divisors (1).

30912828361 is an equidigital number, since it uses as much as digits as its factorization.

30912828361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 30912828361 in words is "thirty billion, nine hundred twelve million, eight hundred twenty-eight thousand, three hundred sixty-one".