30613305949 has 2 divisors, whose sum is σ = 30613305950. Its totient is φ = 30613305948.

The previous prime is 30613305901. The next prime is 30613305971. The reversal of 30613305949 is 94950331603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18600049924 + 12013256025 = 136382^2 + 109605^2 .

It is an emirp because it is prime and its reverse (94950331603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30613305949 - 2²⁷ = 30479088221 is a prime.

It is a super-2 number, since 2×30613305949² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30613305979) 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 as a sum of consecutive naturals, namely, 15306652974 + 15306652975.

It is an arithmetic number, because the mean of its divisors is an integer number (15306652975).

Almost surely, 2^30613305949 is an apocalyptic number.

It is an amenable number.

30613305949 is a deficient number, since it is larger than the sum of its proper divisors (1).

30613305949 is an equidigital number, since it uses as much as digits as its factorization.

30613305949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 43.

The spelling of 30613305949 in words is "thirty billion, six hundred thirteen million, three hundred five thousand, nine hundred forty-nine".