434224343981 has 2 divisors, whose sum is σ = 434224343982. Its totient is φ = 434224343980.

The previous prime is 434224343953. The next prime is 434224344089. The reversal of 434224343981 is 189343422434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 385714281481 + 48510062500 = 621059^2 + 220250^2 .

It is a cyclic number.

It is not a de Polignac number, because 434224343981 - 2¹⁴ = 434224327597 is a prime.

It is a super-2 number, since 2×434224343981² (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 (434224348981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217112171990 + 217112171991.

It is an arithmetic number, because the mean of its divisors is an integer number (217112171991).

Almost surely, 2^434224343981 is an apocalyptic number.

It is an amenable number.

434224343981 is a deficient number, since it is larger than the sum of its proper divisors (1).

434224343981 is an equidigital number, since it uses as much as digits as its factorization.

434224343981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 47.

The spelling of 434224343981 in words is "four hundred thirty-four billion, two hundred twenty-four million, three hundred forty-three thousand, nine hundred eighty-one".