444213312469 has 2 divisors, whose sum is σ = 444213312470. Its totient is φ = 444213312468.

The previous prime is 444213312449. The next prime is 444213312479. The reversal of 444213312469 is 964213312444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 418173035569 + 26040276900 = 646663^2 + 161370^2 .

It is a cyclic number.

It is not a de Polignac number, because 444213312469 - 2²¹ = 444211215317 is a prime.

It is a super-2 number, since 2×444213312469² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444213312419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222106656234 + 222106656235.

It is an arithmetic number, because the mean of its divisors is an integer number (222106656235).

Almost surely, 2^444213312469 is an apocalyptic number.

It is an amenable number.

444213312469 is a deficient number, since it is larger than the sum of its proper divisors (1).

444213312469 is an equidigital number, since it uses as much as digits as its factorization.

444213312469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 43.

The spelling of 444213312469 in words is "four hundred forty-four billion, two hundred thirteen million, three hundred twelve thousand, four hundred sixty-nine".