4521167920 has 80 divisors (see below), whose sum is σ = 10779310080. Its totient is φ = 1762612992.

The previous prime is 4521167909. The next prime is 4521167921. The reversal of 4521167920 is 297611254.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 4521167920.

It is not an unprimeable number, because it can be changed into a prime (4521167921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2018161 + ... + 2020399.

It is an arithmetic number, because the mean of its divisors is an integer number (134741376).

Almost surely, 2^4521167920 is an apocalyptic number.

4521167920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4521167920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5389655040).

4521167920 is an abundant number, since it is smaller than the sum of its proper divisors (6258142160).

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

4521167920 is a wasteful number, since it uses less digits than its factorization.

4521167920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882 (or 2876 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 4521167920 is about 67239.6305760226. The cubic root of 4521167920 is about 1653.5482771334.

The spelling of 4521167920 in words is "four billion, five hundred twenty-one million, one hundred sixty-seven thousand, nine hundred twenty".