30444140761 has 2 divisors, whose sum is σ = 30444140762. Its totient is φ = 30444140760.

The previous prime is 30444140731. The next prime is 30444140773. The reversal of 30444140761 is 16704144403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22243932736 + 8200208025 = 149144^2 + 90555^2 .

It is a cyclic number.

It is not a de Polignac number, because 30444140761 - 2⁷ = 30444140633 is a prime.

It is not a weakly prime, because it can be changed into another prime (30444140711) 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, 15222070380 + 15222070381.

It is an arithmetic number, because the mean of its divisors is an integer number (15222070381).

Almost surely, 2^30444140761 is an apocalyptic number.

It is an amenable number.

30444140761 is a deficient number, since it is larger than the sum of its proper divisors (1).

30444140761 is an equidigital number, since it uses as much as digits as its factorization.

30444140761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 30444140761 in words is "thirty billion, four hundred forty-four million, one hundred forty thousand, seven hundred sixty-one".