43242604057 has 2 divisors, whose sum is σ = 43242604058. Its totient is φ = 43242604056.

The previous prime is 43242604001. The next prime is 43242604061. The reversal of 43242604057 is 75040624234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23574224521 + 19668379536 = 153539^2 + 140244^2 .

It is a cyclic number.

It is not a de Polignac number, because 43242604057 - 2²⁷ = 43108386329 is a prime.

It is not a weakly prime, because it can be changed into another prime (43242604157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621302028 + 21621302029.

It is an arithmetic number, because the mean of its divisors is an integer number (21621302029).

Almost surely, 2^43242604057 is an apocalyptic number.

It is an amenable number.

43242604057 is a deficient number, since it is larger than the sum of its proper divisors (1).

43242604057 is an equidigital number, since it uses as much as digits as its factorization.

43242604057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 37.

The spelling of 43242604057 in words is "forty-three billion, two hundred forty-two million, six hundred four thousand, fifty-seven".