218051484047 has 4 divisors (see below), whose sum is σ = 218120294880. Its totient is φ = 217982673216.

The previous prime is 218051484031. The next prime is 218051484089. The reversal of 218051484047 is 740484150812.

218051484047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 218051484047 - 2⁴ = 218051484031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 218051483989 and 218051484007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218051484947) 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, 34400663 + ... + 34407000.

It is an arithmetic number, because the mean of its divisors is an integer number (54530073720).

Almost surely, 2^218051484047 is an apocalyptic number.

218051484047 is a deficient number, since it is larger than the sum of its proper divisors (68810833).

218051484047 is an equidigital number, since it uses as much as digits as its factorization.

218051484047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68810832.

The product of its (nonzero) digits is 286720, while the sum is 44.

The spelling of 218051484047 in words is "two hundred eighteen billion, fifty-one million, four hundred eighty-four thousand, forty-seven".