218432137883459 has 2 divisors, whose sum is σ = 218432137883460. Its totient is φ = 218432137883458.

The previous prime is 218432137883447. The next prime is 218432137883489. The reversal of 218432137883459 is 954388731234812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 218432137883459 - 2¹⁶ = 218432137817923 is a prime.

It is not a weakly prime, because it can be changed into another prime (218432137883489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109216068941729 + 109216068941730.

It is an arithmetic number, because the mean of its divisors is an integer number (109216068941730).

Almost surely, 2^{218432137883459} is an apocalyptic number.

218432137883459 is a deficient number, since it is larger than the sum of its proper divisors (1).

218432137883459 is an equidigital number, since it uses as much as digits as its factorization.

218432137883459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 278691840, while the sum is 68.

The spelling of 218432137883459 in words is "two hundred eighteen trillion, four hundred thirty-two billion, one hundred thirty-seven million, eight hundred eighty-three thousand, four hundred fifty-nine".