43122418939 has 2 divisors, whose sum is σ = 43122418940. Its totient is φ = 43122418938.

The previous prime is 43122418921. The next prime is 43122418967. The reversal of 43122418939 is 93981422134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43122418939 - 2¹⁵ = 43122386171 is a prime.

It is not a weakly prime, because it can be changed into another prime (43122418439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21561209469 + 21561209470.

It is an arithmetic number, because the mean of its divisors is an integer number (21561209470).

Almost surely, 2^43122418939 is an apocalyptic number.

43122418939 is a deficient number, since it is larger than the sum of its proper divisors (1).

43122418939 is an equidigital number, since it uses as much as digits as its factorization.

43122418939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 46.

The spelling of 43122418939 in words is "forty-three billion, one hundred twenty-two million, four hundred eighteen thousand, nine hundred thirty-nine".