43528430947 has 2 divisors, whose sum is σ = 43528430948. Its totient is φ = 43528430946.

The previous prime is 43528430921. The next prime is 43528431043. The reversal of 43528430947 is 74903482534.

43528430947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43528430947 - 2⁷ = 43528430819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43528430947.

It is not a weakly prime, because it can be changed into another prime (43528433947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21764215473 + 21764215474.

It is an arithmetic number, because the mean of its divisors is an integer number (21764215474).

Almost surely, 2^43528430947 is an apocalyptic number.

43528430947 is a deficient number, since it is larger than the sum of its proper divisors (1).

43528430947 is an equidigital number, since it uses as much as digits as its factorization.

43528430947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 43528430947 in words is "forty-three billion, five hundred twenty-eight million, four hundred thirty thousand, nine hundred forty-seven".