889945352687 has 2 divisors, whose sum is σ = 889945352688. Its totient is φ = 889945352686.

The previous prime is 889945352671. The next prime is 889945352689. The reversal of 889945352687 is 786253549988.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 889945352687 - 2⁴ = 889945352671 is a prime.

Together with 889945352689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (889945352689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444972676343 + 444972676344.

It is an arithmetic number, because the mean of its divisors is an integer number (444972676344).

Almost surely, 2^889945352687 is an apocalyptic number.

889945352687 is a deficient number, since it is larger than the sum of its proper divisors (1).

889945352687 is an equidigital number, since it uses as much as digits as its factorization.

889945352687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1045094400, while the sum is 74.

The spelling of 889945352687 in words is "eight hundred eighty-nine billion, nine hundred forty-five million, three hundred fifty-two thousand, six hundred eighty-seven".