424444224397 has 2 divisors, whose sum is σ = 424444224398. Its totient is φ = 424444224396.

The previous prime is 424444224359. The next prime is 424444224469. The reversal of 424444224397 is 793422444424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 371677999716 + 52766224681 = 609654^2 + 229709^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424444224397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 424444224397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424444224497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212222112198 + 212222112199.

It is an arithmetic number, because the mean of its divisors is an integer number (212222112199).

Almost surely, 2^424444224397 is an apocalyptic number.

It is an amenable number.

424444224397 is a deficient number, since it is larger than the sum of its proper divisors (1).

424444224397 is an equidigital number, since it uses as much as digits as its factorization.

424444224397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6193152, while the sum is 49.

The spelling of 424444224397 in words is "four hundred twenty-four billion, four hundred forty-four million, two hundred twenty-four thousand, three hundred ninety-seven".