213353535254689 has 2 divisors, whose sum is σ = 213353535254690. Its totient is φ = 213353535254688.

The previous prime is 213353535254647. The next prime is 213353535254753. The reversal of 213353535254689 is 986452535353312.

It is an a-pointer prime, because the next prime (213353535254753) can be obtained adding 213353535254689 to its sum of digits (64).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141567567779089 + 71785967475600 = 11898217^2 + 8472660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213353535254689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213353535254689.

It is not a weakly prime, because it can be changed into another prime (213353535254089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106676767627344 + 106676767627345.

It is an arithmetic number, because the mean of its divisors is an integer number (106676767627345).

Almost surely, 2^{213353535254689} is an apocalyptic number.

It is an amenable number.

213353535254689 is a deficient number, since it is larger than the sum of its proper divisors (1).

213353535254689 is an equidigital number, since it uses as much as digits as its factorization.

213353535254689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920000, while the sum is 64.

The spelling of 213353535254689 in words is "two hundred thirteen trillion, three hundred fifty-three billion, five hundred thirty-five million, two hundred fifty-four thousand, six hundred eighty-nine".