444444444461 has 2 divisors, whose sum is σ = 444444444462. Its totient is φ = 444444444460.

The previous prime is 444444444443. The next prime is 444444444517. The reversal of 444444444461 is 164444444444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286004622436 + 158439822025 = 534794^2 + 398045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444444444461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444444444401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222222222230 + 222222222231.

It is an arithmetic number, because the mean of its divisors is an integer number (222222222231).

Almost surely, 2^444444444461 is an apocalyptic number.

It is an amenable number.

444444444461 is a deficient number, since it is larger than the sum of its proper divisors (1).

444444444461 is an equidigital number, since it uses as much as digits as its factorization.

444444444461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6291456, while the sum is 47.

The spelling of 444444444461 in words is "four hundred forty-four billion, four hundred forty-four million, four hundred forty-four thousand, four hundred sixty-one".