43261557068 has 24 divisors (see below), whose sum is σ = 76039670784. Its totient is φ = 21536096400.

The previous prime is 43261557043. The next prime is 43261557091. The reversal of 43261557068 is 86075516234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099373 + ... + 1138043.

It is an arithmetic number, because the mean of its divisors is an integer number (3168319616).

Almost surely, 2^43261557068 is an apocalyptic number.

It is an amenable number.

43261557068 is a deficient number, since it is larger than the sum of its proper divisors (32778113716).

43261557068 is a wasteful number, since it uses less digits than its factorization.

43261557068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39893 (or 39891 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 43261557068 in words is "forty-three billion, two hundred sixty-one million, five hundred fifty-seven thousand, sixty-eight".