424043121269 has 2 divisors, whose sum is σ = 424043121270. Its totient is φ = 424043121268.

The previous prime is 424043121251. The next prime is 424043121301. The reversal of 424043121269 is 962121340424.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231084988369 + 192958132900 = 480713^2 + 439270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424043121269 is a prime.

It is a super-2 number, since 2×424043121269² (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 (424043121769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212021560634 + 212021560635.

It is an arithmetic number, because the mean of its divisors is an integer number (212021560635).

Almost surely, 2^424043121269 is an apocalyptic number.

It is an amenable number.

424043121269 is a deficient number, since it is larger than the sum of its proper divisors (1).

424043121269 is an equidigital number, since it uses as much as digits as its factorization.

424043121269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 424043121269 in words is "four hundred twenty-four billion, forty-three million, one hundred twenty-one thousand, two hundred sixty-nine".