218542827754 has 4 divisors (see below), whose sum is σ = 327814241634. Its totient is φ = 109271413876.

The previous prime is 218542827731. The next prime is 218542827757. The reversal of 218542827754 is 457728245812.

218542827754 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 can be written as a sum of positive squares in only one way, i.e., 203035854025 + 15506973729 = 450595^2 + 124527^2 .

It is a junction number, because it is equal to n+sod(n) for n = 218542827695 and 218542827704.

It is not an unprimeable number, because it can be changed into a prime (218542827757) 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 as a sum of consecutive naturals, namely, 54635706937 + ... + 54635706940.

Almost surely, 2^218542827754 is an apocalyptic number.

218542827754 is a deficient number, since it is larger than the sum of its proper divisors (109271413880).

218542827754 is a wasteful number, since it uses less digits than its factorization.

218542827754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109271413879.

The product of its digits is 10035200, while the sum is 55.

The spelling of 218542827754 in words is "two hundred eighteen billion, five hundred forty-two million, eight hundred twenty-seven thousand, seven hundred fifty-four".