4405231511561 has 2 divisors, whose sum is σ = 4405231511562. Its totient is φ = 4405231511560.

The previous prime is 4405231511521. The next prime is 4405231511581. The reversal of 4405231511561 is 1651151325044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4043135670025 + 362095841536 = 2010755^2 + 601744^2 .

It is a cyclic number.

It is not a de Polignac number, because 4405231511561 - 2³⁸ = 4130353604617 is a prime.

It is not a weakly prime, because it can be changed into another prime (4405231511521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2202615755780 + 2202615755781.

It is an arithmetic number, because the mean of its divisors is an integer number (2202615755781).

Almost surely, 2^{4405231511561} is an apocalyptic number.

It is an amenable number.

4405231511561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4405231511561 is an equidigital number, since it uses as much as digits as its factorization.

4405231511561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 4405231511561 in words is "four trillion, four hundred five billion, two hundred thirty-one million, five hundred eleven thousand, five hundred sixty-one".