4995721920 has 224 divisors, whose sum is σ = 18712866816. Its totient is φ = 1104998400.

The previous prime is 4995721909. The next prime is 4995721921. The reversal of 4995721920 is 291275994.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 4995721920.

It is not an unprimeable number, because it can be changed into a prime (4995721921) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 196330 + ... + 220310.

It is an arithmetic number, because the mean of its divisors is an integer number (83539584).

Almost surely, 2^4995721920 is an apocalyptic number.

4995721920 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 4995721920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9356433408).

4995721920 is an abundant number, since it is smaller than the sum of its proper divisors (13717144896).

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

4995721920 is a wasteful number, since it uses less digits than its factorization.

4995721920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24039 (or 24029 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 4995721920 is about 70680.4210513774. The cubic root of 4995721920 is about 1709.4881132577.

The spelling of 4995721920 in words is "four billion, nine hundred ninety-five million, seven hundred twenty-one thousand, nine hundred twenty".