43545426068 has 12 divisors (see below), whose sum is σ = 76206038580. Its totient is φ = 21772272192.

The previous prime is 43545426047. The next prime is 43545426077. The reversal of 43545426068 is 86062454534.

It can be written as a sum of positive squares in 2 ways, for example, as 26928153604 + 16617272464 = 164098^2 + 128908^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225998 + ... + 371706.

It is an arithmetic number, because the mean of its divisors is an integer number (6350503215).

Almost surely, 2^43545426068 is an apocalyptic number.

It is an amenable number.

43545426068 is a deficient number, since it is larger than the sum of its proper divisors (32660612512).

43545426068 is a wasteful number, since it uses less digits than its factorization.

43545426068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220426 (or 220424 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 47.

The spelling of 43545426068 in words is "forty-three billion, five hundred forty-five million, four hundred twenty-six thousand, sixty-eight".