218698950341 has 2 divisors, whose sum is σ = 218698950342. Its totient is φ = 218698950340.

The previous prime is 218698950313. The next prime is 218698950377. The reversal of 218698950341 is 143059896812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215282080225 + 3416870116 = 463985^2 + 58454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218698950341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218698950541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109349475170 + 109349475171.

It is an arithmetic number, because the mean of its divisors is an integer number (109349475171).

Almost surely, 2^218698950341 is an apocalyptic number.

It is an amenable number.

218698950341 is a deficient number, since it is larger than the sum of its proper divisors (1).

218698950341 is an equidigital number, since it uses as much as digits as its factorization.

218698950341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 218698950341 in words is "two hundred eighteen billion, six hundred ninety-eight million, nine hundred fifty thousand, three hundred forty-one".