5004721820 has 72 divisors (see below), whose sum is σ = 12426392160. Its totient is φ = 1687754880.

The previous prime is 5004721819. The next prime is 5004721837. The reversal of 5004721820 is 281274005.

It is a super-2 number, since 2×5004721820² = 50094480991168224800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17921 + ... + 101639.

It is an arithmetic number, because the mean of its divisors is an integer number (172588780).

Almost surely, 2^5004721820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5004721820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6213196080).

5004721820 is an abundant number, since it is smaller than the sum of its proper divisors (7421670340).

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

5004721820 is a wasteful number, since it uses less digits than its factorization.

5004721820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83803 (or 83794 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 5004721820 is about 70744.0585491107. The cubic root of 5004721820 is about 1710.5140572298.

Adding to 5004721820 its reverse (281274005), we get a palindrome (5285995825).

The spelling of 5004721820 in words is "five billion, four million, seven hundred twenty-one thousand, eight hundred twenty".