218367089740741 has 2 divisors, whose sum is σ = 218367089740742. Its totient is φ = 218367089740740.

The previous prime is 218367089740717. The next prime is 218367089740841. The reversal of 218367089740741 is 147047980763812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216273671412516 + 2093418328225 = 14706246^2 + 1446865^2 .

It is a cyclic number.

It is not a de Polignac number, because 218367089740741 - 2²¹ = 218367087643589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218367089740841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109183544870370 + 109183544870371.

It is an arithmetic number, because the mean of its divisors is an integer number (109183544870371).

Almost surely, 2^{218367089740741} is an apocalyptic number.

It is an amenable number.

218367089740741 is a deficient number, since it is larger than the sum of its proper divisors (1).

218367089740741 is an equidigital number, since it uses as much as digits as its factorization.

218367089740741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113799168, while the sum is 67.

The spelling of 218367089740741 in words is "two hundred eighteen trillion, three hundred sixty-seven billion, eighty-nine million, seven hundred forty thousand, seven hundred forty-one".