43983913423 has 2 divisors, whose sum is σ = 43983913424. Its totient is φ = 43983913422.

The previous prime is 43983913417. The next prime is 43983913433. The reversal of 43983913423 is 32431938934.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43983913423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43983913433) 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, 21991956711 + 21991956712.

It is an arithmetic number, because the mean of its divisors is an integer number (21991956712).

Almost surely, 2^43983913423 is an apocalyptic number.

43983913423 is a deficient number, since it is larger than the sum of its proper divisors (1).

43983913423 is an equidigital number, since it uses as much as digits as its factorization.

43983913423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 49.

The spelling of 43983913423 in words is "forty-three billion, nine hundred eighty-three million, nine hundred thirteen thousand, four hundred twenty-three".