918364563 has 24 divisors (see below), whose sum is σ = 1404748800. Its totient is φ = 576528624.

The previous prime is 918364561. The next prime is 918364589. The reversal of 918364563 is 365463819.

918364563 is a `hidden beast` number, since 9 + 1 + 83 + 6 + 4 + 563 = 666.

It is not a de Polignac number, because 918364563 - 2¹ = 918364561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (918364561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12478 + ... + 44636.

It is an arithmetic number, because the mean of its divisors is an integer number (58531200).

Almost surely, 2^918364563 is an apocalyptic number.

918364563 is a deficient number, since it is larger than the sum of its proper divisors (486384237).

918364563 is a wasteful number, since it uses less digits than its factorization.

918364563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32351 (or 32348 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 918364563 is about 30304.5304038852. The cubic root of 918364563 is about 972.0121772340.

The spelling of 918364563 in words is "nine hundred eighteen million, three hundred sixty-four thousand, five hundred sixty-three".