43039508089 has 2 divisors, whose sum is σ = 43039508090. Its totient is φ = 43039508088.

The previous prime is 43039508087. The next prime is 43039508117. The reversal of 43039508089 is 98080593034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28527210000 + 14512298089 = 168900^2 + 120467^2 .

It is a cyclic number.

It is not a de Polignac number, because 43039508089 - 2¹ = 43039508087 is a prime.

Together with 43039508087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (43039508081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21519754044 + 21519754045.

It is an arithmetic number, because the mean of its divisors is an integer number (21519754045).

Almost surely, 2^43039508089 is an apocalyptic number.

It is an amenable number.

43039508089 is a deficient number, since it is larger than the sum of its proper divisors (1).

43039508089 is an equidigital number, since it uses as much as digits as its factorization.

43039508089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 43039508089 in words is "forty-three billion, thirty-nine million, five hundred eight thousand, eighty-nine".