43249694239 has 2 divisors, whose sum is σ = 43249694240. Its totient is φ = 43249694238.

The previous prime is 43249694227. The next prime is 43249694273. The reversal of 43249694239 is 93249694234.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43249694239 - 2⁵ = 43249694207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43249694239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43249694639) 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, 21624847119 + 21624847120.

It is an arithmetic number, because the mean of its divisors is an integer number (21624847120).

Almost surely, 2^43249694239 is an apocalyptic number.

43249694239 is a deficient number, since it is larger than the sum of its proper divisors (1).

43249694239 is an equidigital number, since it uses as much as digits as its factorization.

43249694239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10077696, while the sum is 55.

The spelling of 43249694239 in words is "forty-three billion, two hundred forty-nine million, six hundred ninety-four thousand, two hundred thirty-nine".