218935557359 has 2 divisors, whose sum is σ = 218935557360. Its totient is φ = 218935557358.

The previous prime is 218935557353. The next prime is 218935557437. The reversal of 218935557359 is 953755539812.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218935557359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218935557353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109467778679 + 109467778680.

It is an arithmetic number, because the mean of its divisors is an integer number (109467778680).

Almost surely, 2^218935557359 is an apocalyptic number.

218935557359 is a deficient number, since it is larger than the sum of its proper divisors (1).

218935557359 is an equidigital number, since it uses as much as digits as its factorization.

218935557359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030000, while the sum is 62.

The spelling of 218935557359 in words is "two hundred eighteen billion, nine hundred thirty-five million, five hundred fifty-seven thousand, three hundred fifty-nine".