218432272101187 has 2 divisors, whose sum is σ = 218432272101188. Its totient is φ = 218432272101186.

The previous prime is 218432272101149. The next prime is 218432272101217. The reversal of 218432272101187 is 781101272234812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 218432272101187 - 2²⁷ = 218432137883459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 218432272101187.

It is not a weakly prime, because it can be changed into another prime (218432272101107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109216136050593 + 109216136050594.

It is an arithmetic number, because the mean of its divisors is an integer number (109216136050594).

Almost surely, 2^{218432272101187} is an apocalyptic number.

218432272101187 is a deficient number, since it is larger than the sum of its proper divisors (1).

218432272101187 is an equidigital number, since it uses as much as digits as its factorization.

218432272101187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 602112, while the sum is 49.

The spelling of 218432272101187 in words is "two hundred eighteen trillion, four hundred thirty-two billion, two hundred seventy-two million, one hundred one thousand, one hundred eighty-seven".