43316126618 has 4 divisors (see below), whose sum is σ = 64974189930. Its totient is φ = 21658063308.

The previous prime is 43316126611. The next prime is 43316126629. The reversal of 43316126618 is 81662161334.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28359570409 + 14956556209 = 168403^2 + 122297^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43316126611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10829031653 + ... + 10829031656.

Almost surely, 2^43316126618 is an apocalyptic number.

43316126618 is a deficient number, since it is larger than the sum of its proper divisors (21658063312).

43316126618 is a wasteful number, since it uses less digits than its factorization.

43316126618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21658063311.

The product of its digits is 124416, while the sum is 41.

The spelling of 43316126618 in words is "forty-three billion, three hundred sixteen million, one hundred twenty-six thousand, six hundred eighteen".