43485538597 has 2 divisors, whose sum is σ = 43485538598. Its totient is φ = 43485538596.

The previous prime is 43485538543. The next prime is 43485538643. The reversal of 43485538597 is 79583558434.

It is a happy number.

43485538597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39269763556 + 4215775041 = 198166^2 + 64929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43485538597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43485530597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21742769298 + 21742769299.

It is an arithmetic number, because the mean of its divisors is an integer number (21742769299).

Almost surely, 2^43485538597 is an apocalyptic number.

It is an amenable number.

43485538597 is a deficient number, since it is larger than the sum of its proper divisors (1).

43485538597 is an equidigital number, since it uses as much as digits as its factorization.

43485538597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576000, while the sum is 61.

The spelling of 43485538597 in words is "forty-three billion, four hundred eighty-five million, five hundred thirty-eight thousand, five hundred ninety-seven".