898452817877 has 2 divisors, whose sum is σ = 898452817878.
Its totient is φ = 898452817876.
The previous prime is 898452817837. The next prime is 898452817939. The reversal of 898452817877 is 778718254898.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 560954562961 + 337498254916 = 748969^2 + 580946^2
It is a cyclic number.
It is not a de Polignac number, because 898452817877 - 26 = 898452817813 is a prime.
It is a super-2 number, since 2×8984528178772 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (898452817837) 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, 449226408938 + 449226408939.
It is an arithmetic number, because the mean of its divisors is an integer number (449226408939).
Almost surely, 2898452817877 is an apocalyptic number.
It is an amenable number.
898452817877 is a deficient number, since it is larger than the sum of its proper divisors (1).
898452817877 is an equidigital number, since it uses as much as digits as its factorization.
898452817877 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 505774080, while the sum is 74.
The spelling of 898452817877 in words is "eight hundred ninety-eight billion, four hundred fifty-two million, eight hundred seventeen thousand, eight hundred seventy-seven".