43242604099 has 2 divisors, whose sum is σ = 43242604100. Its totient is φ = 43242604098.

The previous prime is 43242604079. The next prime is 43242604121. The reversal of 43242604099 is 99040624234.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43242604099 - 2³³ = 34652669507 is a prime.

It is not a weakly prime, because it can be changed into another prime (43242604079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621302049 + 21621302050.

It is an arithmetic number, because the mean of its divisors is an integer number (21621302050).

Almost surely, 2^43242604099 is an apocalyptic number.

43242604099 is a deficient number, since it is larger than the sum of its proper divisors (1).

43242604099 is an equidigital number, since it uses as much as digits as its factorization.

43242604099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 43242604099 in words is "forty-three billion, two hundred forty-two million, six hundred four thousand, ninety-nine".