444444444444461 has 2 divisors, whose sum is σ = 444444444444462. Its totient is φ = 444444444444460.

The previous prime is 444444444444421. The next prime is 444444444444491. The reversal of 444444444444461 is 164444444444444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276786774348100 + 167657670096361 = 16636910^2 + 12948269^2 .

It is a cyclic number.

It is not a de Polignac number, because 444444444444461 - 2¹⁸ = 444444444182317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444444444444461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444444444444421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222222222222230 + 222222222222231.

It is an arithmetic number, because the mean of its divisors is an integer number (222222222222231).

Almost surely, 2^{444444444444461} is an apocalyptic number.

It is an amenable number.

444444444444461 is a deficient number, since it is larger than the sum of its proper divisors (1).

444444444444461 is an equidigital number, since it uses as much as digits as its factorization.

444444444444461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 402653184, while the sum is 59.

The spelling of 444444444444461 in words is "four hundred forty-four trillion, four hundred forty-four billion, four hundred forty-four million, four hundred forty-four thousand, four hundred sixty-one".