444220412291 has 2 divisors, whose sum is σ = 444220412292. Its totient is φ = 444220412290.

The previous prime is 444220412267. The next prime is 444220412327. The reversal of 444220412291 is 192214022444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 444220412291 - 2²² = 444216217987 is a prime.

It is not a weakly prime, because it can be changed into another prime (444220415291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222110206145 + 222110206146.

It is an arithmetic number, because the mean of its divisors is an integer number (222110206146).

Almost surely, 2^444220412291 is an apocalyptic number.

444220412291 is a deficient number, since it is larger than the sum of its proper divisors (1).

444220412291 is an equidigital number, since it uses as much as digits as its factorization.

444220412291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 35.

The spelling of 444220412291 in words is "four hundred forty-four billion, two hundred twenty million, four hundred twelve thousand, two hundred ninety-one".