211243472518 has 8 divisors (see below), whose sum is σ = 341239455648. Its totient is φ = 97496987304.

The previous prime is 211243472513. The next prime is 211243472533. The reversal of 211243472518 is 815274342112.

211243472518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211243472513) 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 in 3 ways as a sum of consecutive naturals, for example, 4062374446 + ... + 4062374497.

It is an arithmetic number, because the mean of its divisors is an integer number (42654931956).

Almost surely, 2^211243472518 is an apocalyptic number.

211243472518 is a deficient number, since it is larger than the sum of its proper divisors (129995983130).

211243472518 is a wasteful number, since it uses less digits than its factorization.

211243472518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8124748958.

The product of its digits is 107520, while the sum is 40.

The spelling of 211243472518 in words is "two hundred eleven billion, two hundred forty-three million, four hundred seventy-two thousand, five hundred eighteen".