444121121447 has 2 divisors, whose sum is σ = 444121121448. Its totient is φ = 444121121446.

The previous prime is 444121121429. The next prime is 444121121489. The reversal of 444121121447 is 744121121444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 444121121447 - 2¹² = 444121117351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444121121407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222060560723 + 222060560724.

It is an arithmetic number, because the mean of its divisors is an integer number (222060560724).

Almost surely, 2^444121121447 is an apocalyptic number.

444121121447 is a deficient number, since it is larger than the sum of its proper divisors (1).

444121121447 is an equidigital number, since it uses as much as digits as its factorization.

444121121447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28672, while the sum is 35.

The spelling of 444121121447 in words is "four hundred forty-four billion, one hundred twenty-one million, one hundred twenty-one thousand, four hundred forty-seven".