218051052459 has 8 divisors (see below), whose sum is σ = 290958901200. Its totient is φ = 145255286016.

The previous prime is 218051052451. The next prime is 218051052463. The reversal of 218051052459 is 954250150812.

218051052459 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 not a de Polignac number, because 218051052459 - 2³ = 218051052451 is a prime.

It is a super-2 number, since 2×218051052459² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 218051052459.

It is not an unprimeable number, because it can be changed into a prime (218051052451) 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 7 ways as a sum of consecutive naturals, for example, 28016034 + ... + 28023815.

It is an arithmetic number, because the mean of its divisors is an integer number (36369862650).

Almost surely, 2^218051052459 is an apocalyptic number.

218051052459 is a deficient number, since it is larger than the sum of its proper divisors (72907848741).

218051052459 is a wasteful number, since it uses less digits than its factorization.

218051052459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56041149.

The product of its (nonzero) digits is 144000, while the sum is 42.

The spelling of 218051052459 in words is "two hundred eighteen billion, fifty-one million, fifty-two thousand, four hundred fifty-nine".