218072427895 has 32 divisors (see below), whose sum is σ = 315169505280. Its totient is φ = 141503915520.

The previous prime is 218072427893. The next prime is 218072427901. The reversal of 218072427895 is 598724270812.

218072427895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 218072427895 - 2¹ = 218072427893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218072427893) 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 31 ways as a sum of consecutive naturals, for example, 399754 + ... + 771976.

It is an arithmetic number, because the mean of its divisors is an integer number (9849047040).

Almost surely, 2^218072427895 is an apocalyptic number.

218072427895 is a deficient number, since it is larger than the sum of its proper divisors (97097077385).

218072427895 is a wasteful number, since it uses less digits than its factorization.

218072427895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373135.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 218072427895 in words is "two hundred eighteen billion, seventy-two million, four hundred twenty-seven thousand, eight hundred ninety-five".