5445163818 has 64 divisors (see below), whose sum is σ = 12883328640. Its totient is φ = 1698796800.

The previous prime is 5445163817. The next prime is 5445163847. The reversal of 5445163818 is 8183615445.

5445163818 is a `hidden beast` number, since 5 + 4 + 4 + 5 + 1 + 638 + 1 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (5445163817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149773 + ... + 182543.

It is an arithmetic number, because the mean of its divisors is an integer number (201302010).

Almost surely, 2^5445163818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5445163818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6441664320).

5445163818 is an abundant number, since it is smaller than the sum of its proper divisors (7438164822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5445163818 is a wasteful number, since it uses less digits than its factorization.

5445163818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32980 (or 32974 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 5445163818 is about 73791.3532739440. The cubic root of 5445163818 is about 1759.2881739631.

The spelling of 5445163818 in words is "five billion, four hundred forty-five million, one hundred sixty-three thousand, eight hundred eighteen".