444004440491 has 2 divisors, whose sum is σ = 444004440492. Its totient is φ = 444004440490.

The previous prime is 444004440433. The next prime is 444004440533. The reversal of 444004440491 is 194044400444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444004440491 - 2⁶ = 444004440427 is a prime.

It is not a weakly prime, because it can be changed into another prime (444004440091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222002220245 + 222002220246.

It is an arithmetic number, because the mean of its divisors is an integer number (222002220246).

Almost surely, 2^444004440491 is an apocalyptic number.

444004440491 is a deficient number, since it is larger than the sum of its proper divisors (1).

444004440491 is an equidigital number, since it uses as much as digits as its factorization.

444004440491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 147456, while the sum is 38.

The spelling of 444004440491 in words is "four hundred forty-four billion, four million, four hundred forty thousand, four hundred ninety-one".