428163118865 has 16 divisors (see below), whose sum is σ = 514298317440. Its totient is φ = 342195598080.

The previous prime is 428163118861. The next prime is 428163118913. The reversal of 428163118865 is 568811361824.

It is not a de Polignac number, because 428163118865 - 2² = 428163118861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428163118861) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 32207870 + ... + 32221160.

It is an arithmetic number, because the mean of its divisors is an integer number (32143644840).

Almost surely, 2^428163118865 is an apocalyptic number.

It is an amenable number.

428163118865 is a deficient number, since it is larger than the sum of its proper divisors (86135198575).

428163118865 is a wasteful number, since it uses less digits than its factorization.

428163118865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19112.

The product of its digits is 2211840, while the sum is 53.

The spelling of 428163118865 in words is "four hundred twenty-eight billion, one hundred sixty-three million, one hundred eighteen thousand, eight hundred sixty-five".