213488889565057 has 2 divisors, whose sum is σ = 213488889565058. Its totient is φ = 213488889565056.

The previous prime is 213488889565043. The next prime is 213488889565111. The reversal of 213488889565057 is 750565988884312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201076965985921 + 12411923579136 = 14180161^2 + 3523056^2 .

It is a cyclic number.

It is not a de Polignac number, because 213488889565057 - 2¹¹ = 213488889563009 is a prime.

It is a super-2 number, since 2×213488889565057² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213488889565037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106744444782528 + 106744444782529.

It is an arithmetic number, because the mean of its divisors is an integer number (106744444782529).

It is a 1-persistent number, because it is pandigital, but 2⋅213488889565057 = 426977779130114 is not.

Almost surely, 2^{213488889565057} is an apocalyptic number.

It is an amenable number.

213488889565057 is a deficient number, since it is larger than the sum of its proper divisors (1).

213488889565057 is an equidigital number, since it uses as much as digits as its factorization.

213488889565057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4644864000, while the sum is 79.

The spelling of 213488889565057 in words is "two hundred thirteen trillion, four hundred eighty-eight billion, eight hundred eighty-nine million, five hundred sixty-five thousand, fifty-seven".