443402339035897 has 2 divisors, whose sum is σ = 443402339035898. Its totient is φ = 443402339035896.

The previous prime is 443402339035889. The next prime is 443402339035921. The reversal of 443402339035897 is 798530933204344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224637266313216 + 218765072722681 = 14987904^2 + 14790709^2 .

It is a cyclic number.

It is not a de Polignac number, because 443402339035897 - 2³ = 443402339035889 is a prime.

It is not a weakly prime, because it can be changed into another prime (443402339035297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221701169517948 + 221701169517949.

It is an arithmetic number, because the mean of its divisors is an integer number (221701169517949).

Almost surely, 2^{443402339035897} is an apocalyptic number.

It is an amenable number.

443402339035897 is a deficient number, since it is larger than the sum of its proper divisors (1).

443402339035897 is an equidigital number, since it uses as much as digits as its factorization.

443402339035897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 235146240, while the sum is 64.

The spelling of 443402339035897 in words is "four hundred forty-three trillion, four hundred two billion, three hundred thirty-nine million, thirty-five thousand, eight hundred ninety-seven".