43441453423997 has 2 divisors, whose sum is σ = 43441453423998. Its totient is φ = 43441453423996.

The previous prime is 43441453423957. The next prime is 43441453424023. The reversal of 43441453423997 is 79932435414434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23874110020996 + 19567343403001 = 4886114^2 + 4423499^2 .

It is a cyclic number.

It is not a de Polignac number, because 43441453423997 - 2²⁴ = 43441436646781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43441453423957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21720726711998 + 21720726711999.

It is an arithmetic number, because the mean of its divisors is an integer number (21720726711999).

Almost surely, 2^{43441453423997} is an apocalyptic number.

It is an amenable number.

43441453423997 is a deficient number, since it is larger than the sum of its proper divisors (1).

43441453423997 is an equidigital number, since it uses as much as digits as its factorization.

43441453423997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156764160, while the sum is 62.

The spelling of 43441453423997 in words is "forty-three trillion, four hundred forty-one billion, four hundred fifty-three million, four hundred twenty-three thousand, nine hundred ninety-seven".