889701697613 has 2 divisors, whose sum is σ = 889701697614. Its totient is φ = 889701697612.

The previous prime is 889701697597. The next prime is 889701697627. The reversal of 889701697613 is 316796107988.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 760973586244 + 128728111369 = 872338^2 + 358787^2 .

It is a cyclic number.

It is not a de Polignac number, because 889701697613 - 2⁴ = 889701697597 is a prime.

It is a super-2 number, since 2×889701697613² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 889701697613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (889701696613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444850848806 + 444850848807.

It is an arithmetic number, because the mean of its divisors is an integer number (444850848807).

Almost surely, 2^889701697613 is an apocalyptic number.

It is an amenable number.

889701697613 is a deficient number, since it is larger than the sum of its proper divisors (1).

889701697613 is an equidigital number, since it uses as much as digits as its factorization.

889701697613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27433728, while the sum is 65.

The spelling of 889701697613 in words is "eight hundred eighty-nine billion, seven hundred one million, six hundred ninety-seven thousand, six hundred thirteen".