2061444461 has 2 divisors, whose sum is σ = 2061444462. Its totient is φ = 2061444460.

The previous prime is 2061444421. The next prime is 2061444481. The reversal of 2061444461 is 1644441602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1110955561 + 950488900 = 33331^2 + 30830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2061444461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2061444421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030722230 + 1030722231.

It is an arithmetic number, because the mean of its divisors is an integer number (1030722231).

Almost surely, 2^2061444461 is an apocalyptic number.

It is an amenable number.

2061444461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061444461 is an equidigital number, since it uses as much as digits as its factorization.

2061444461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 2061444461 is about 45403.1327223133. The cubic root of 2061444461 is about 1272.6936567483.

The spelling of 2061444461 in words is "two billion, sixty-one million, four hundred forty-four thousand, four hundred sixty-one".