218528200871 has 2 divisors, whose sum is σ = 218528200872. Its totient is φ = 218528200870.

The previous prime is 218528200817. The next prime is 218528200951. The reversal of 218528200871 is 178002825812.

It is a happy number.

Together with previous prime (218528200817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218528200871 is a prime.

It is a super-2 number, since 2×218528200871² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218528230871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109264100435 + 109264100436.

It is an arithmetic number, because the mean of its divisors is an integer number (109264100436).

Almost surely, 2^218528200871 is an apocalyptic number.

218528200871 is a deficient number, since it is larger than the sum of its proper divisors (1).

218528200871 is an equidigital number, since it uses as much as digits as its factorization.

218528200871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 143360, while the sum is 44.

The spelling of 218528200871 in words is "two hundred eighteen billion, five hundred twenty-eight million, two hundred thousand, eight hundred seventy-one".