443340253493 has 2 divisors, whose sum is σ = 443340253494. Its totient is φ = 443340253492.

The previous prime is 443340253483. The next prime is 443340253511. The reversal of 443340253493 is 394352043344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266232264529 + 177107988964 = 515977^2 + 420842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-443340253493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443340253453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221670126746 + 221670126747.

It is an arithmetic number, because the mean of its divisors is an integer number (221670126747).

Almost surely, 2^443340253493 is an apocalyptic number.

It is an amenable number.

443340253493 is a deficient number, since it is larger than the sum of its proper divisors (1).

443340253493 is an equidigital number, since it uses as much as digits as its factorization.

443340253493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 44.

The spelling of 443340253493 in words is "four hundred forty-three billion, three hundred forty million, two hundred fifty-three thousand, four hundred ninety-three".