43231558859 has 2 divisors, whose sum is σ = 43231558860. Its totient is φ = 43231558858.

The previous prime is 43231558837. The next prime is 43231558873. The reversal of 43231558859 is 95885513234.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43231558859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43231558859.

It is not a weakly prime, because it can be changed into another prime (43231558879) 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, 21615779429 + 21615779430.

It is an arithmetic number, because the mean of its divisors is an integer number (21615779430).

Almost surely, 2^43231558859 is an apocalyptic number.

43231558859 is a deficient number, since it is larger than the sum of its proper divisors (1).

43231558859 is an equidigital number, since it uses as much as digits as its factorization.

43231558859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184000, while the sum is 53.

The spelling of 43231558859 in words is "forty-three billion, two hundred thirty-one million, five hundred fifty-eight thousand, eight hundred fifty-nine".