30298216991 has 12 divisors (see below), whose sum is σ = 35248736160. Its totient is φ = 25967047680.

The previous prime is 30298216961. The next prime is 30298216999. The reversal of 30298216991 is 19961289203.

It is a happy number.

It is not a de Polignac number, because 30298216991 - 2¹⁰ = 30298215967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30298216999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 502175 + ... + 559263.

It is an arithmetic number, because the mean of its divisors is an integer number (2937394680).

Almost surely, 2^30298216991 is an apocalyptic number.

30298216991 is a deficient number, since it is larger than the sum of its proper divisors (4950519169).

30298216991 is a wasteful number, since it uses less digits than its factorization.

30298216991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67934 (or 67927 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 30298216991 in words is "thirty billion, two hundred ninety-eight million, two hundred sixteen thousand, nine hundred ninety-one".