30668284837 has 2 divisors, whose sum is σ = 30668284838. Its totient is φ = 30668284836.

The previous prime is 30668284813. The next prime is 30668284849. The reversal of 30668284837 is 73848286603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17544062116 + 13124222721 = 132454^2 + 114561^2 .

It is a cyclic number.

It is not a de Polignac number, because 30668284837 - 2³¹ = 28520801189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30668284037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15334142418 + 15334142419.

It is an arithmetic number, because the mean of its divisors is an integer number (15334142419).

Almost surely, 2^30668284837 is an apocalyptic number.

It is an amenable number.

30668284837 is a deficient number, since it is larger than the sum of its proper divisors (1).

30668284837 is an equidigital number, since it uses as much as digits as its factorization.

30668284837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 30668284837 in words is "thirty billion, six hundred sixty-eight million, two hundred eighty-four thousand, eight hundred thirty-seven".