818718445 has 8 divisors (see below), whose sum is σ = 982640736. Its totient is φ = 654855696.

The previous prime is 818718431. The next prime is 818718449. The reversal of 818718445 is 544817818.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 818718445 - 2¹¹ = 818716397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 818718395 and 818718404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818718449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25174 + ... + 47656.

It is an arithmetic number, because the mean of its divisors is an integer number (122830092).

Almost surely, 2^818718445 is an apocalyptic number.

It is an amenable number.

818718445 is a deficient number, since it is larger than the sum of its proper divisors (163922291).

818718445 is a wasteful number, since it uses less digits than its factorization.

818718445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29771.

The product of its digits is 286720, while the sum is 46.

The square root of 818718445 is about 28613.2564557060. The cubic root of 818718445 is about 935.5022971451.

The spelling of 818718445 in words is "eight hundred eighteen million, seven hundred eighteen thousand, four hundred forty-five".