43443744023 has 2 divisors, whose sum is σ = 43443744024. Its totient is φ = 43443744022.

The previous prime is 43443743971. The next prime is 43443744041. The reversal of 43443744023 is 32044734434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43443744023 - 2¹⁰ = 43443742999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43443744073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21721872011 + 21721872012.

It is an arithmetic number, because the mean of its divisors is an integer number (21721872012).

Almost surely, 2^43443744023 is an apocalyptic number.

43443744023 is a deficient number, since it is larger than the sum of its proper divisors (1).

43443744023 is an equidigital number, since it uses as much as digits as its factorization.

43443744023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 38.

The spelling of 43443744023 in words is "forty-three billion, four hundred forty-three million, seven hundred forty-four thousand, twenty-three".