43193950018 has 8 divisors (see below), whose sum is σ = 65225763900. Its totient is φ = 21452028720.

The previous prime is 43193949943. The next prime is 43193950043. The reversal of 43193950018 is 81005939134.

43193950018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36380603169 + 6813346849 = 190737^2 + 82543^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 72472773 + ... + 72473368.

Almost surely, 2^43193950018 is an apocalyptic number.

43193950018 is a deficient number, since it is larger than the sum of its proper divisors (22031813882).

43193950018 is a wasteful number, since it uses less digits than its factorization.

43193950018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144946292.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 43193950018 in words is "forty-three billion, one hundred ninety-three million, nine hundred fifty thousand, eighteen".