43709726023 has 2 divisors, whose sum is σ = 43709726024. Its totient is φ = 43709726022.

The previous prime is 43709725981. The next prime is 43709726029. The reversal of 43709726023 is 32062790734.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43709726023 - 2³³ = 35119791431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43709726029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21854863011 + 21854863012.

It is an arithmetic number, because the mean of its divisors is an integer number (21854863012).

Almost surely, 2^43709726023 is an apocalyptic number.

43709726023 is a deficient number, since it is larger than the sum of its proper divisors (1).

43709726023 is an equidigital number, since it uses as much as digits as its factorization.

43709726023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 43.

The spelling of 43709726023 in words is "forty-three billion, seven hundred nine million, seven hundred twenty-six thousand, twenty-three".