30644446061 has 2 divisors, whose sum is σ = 30644446062. Its totient is φ = 30644446060.

The previous prime is 30644446043. The next prime is 30644446067. The reversal of 30644446061 is 16064444603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24496945225 + 6147500836 = 156515^2 + 78406^2 .

It is an emirp because it is prime and its reverse (16064444603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30644446061 - 2¹⁴ = 30644429677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30644446067) 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, 15322223030 + 15322223031.

It is an arithmetic number, because the mean of its divisors is an integer number (15322223031).

Almost surely, 2^30644446061 is an apocalyptic number.

It is an amenable number.

30644446061 is a deficient number, since it is larger than the sum of its proper divisors (1).

30644446061 is an equidigital number, since it uses as much as digits as its factorization.

30644446061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 30644446061 in words is "thirty billion, six hundred forty-four million, four hundred forty-six thousand, sixty-one".