4581180618 has 96 divisors (see below), whose sum is σ = 11148762240. Its totient is φ = 1248952320.

The previous prime is 4581180607. The next prime is 4581180623. The reversal of 4581180618 is 8160811854.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 4581180618.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5199538 + ... + 5200418.

It is an arithmetic number, because the mean of its divisors is an integer number (116132940).

Almost surely, 2^4581180618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4581180618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5574381120).

4581180618 is an abundant number, since it is smaller than the sum of its proper divisors (6567581622).

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

4581180618 is a wasteful number, since it uses less digits than its factorization.

4581180618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 42.

The square root of 4581180618 is about 67684.4193149354. The cubic root of 4581180618 is about 1660.8323858022.

The spelling of 4581180618 in words is "four billion, five hundred eighty-one million, one hundred eighty thousand, six hundred eighteen".