75438050218 has 4 divisors (see below), whose sum is σ = 113157075330. Its totient is φ = 37719025108.

The previous prime is 75438050203. The next prime is 75438050257. The reversal of 75438050218 is 81205083457.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81205083457 = 67 ⋅1212016171.

It can be written as a sum of positive squares in only one way, i.e., 69520286889 + 5917763329 = 263667^2 + 76927^2 .

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 as a sum of consecutive naturals, namely, 18859512553 + ... + 18859512556.

Almost surely, 2^75438050218 is an apocalyptic number.

75438050218 is a deficient number, since it is larger than the sum of its proper divisors (37719025112).

75438050218 is a wasteful number, since it uses less digits than its factorization.

75438050218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37719025111.

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 75438050218 in words is "seventy-five billion, four hundred thirty-eight million, fifty thousand, two hundred eighteen".