863898286225 has 24 divisors (see below), whose sum is σ = 1154000526392. Its totient is φ = 637754342400.

The previous prime is 863898286193. The next prime is 863898286253. The reversal of 863898286225 is 522682898368.

It can be written as a sum of positive squares in 12 ways, for example, as 471479982736 + 392418303489 = 686644^2 + 626433^2 .

It is not a de Polignac number, because 863898286225 - 2⁵ = 863898286193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 616009 + ... + 1451641.

Almost surely, 2^863898286225 is an apocalyptic number.

It is an amenable number.

863898286225 is a deficient number, since it is larger than the sum of its proper divisors (290102240167).

863898286225 is a wasteful number, since it uses less digits than its factorization.

863898286225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838837 (or 838832 counting only the distinct ones).

The product of its digits is 159252480, while the sum is 67.

The spelling of 863898286225 in words is "eight hundred sixty-three billion, eight hundred ninety-eight million, two hundred eighty-six thousand, two hundred twenty-five".