500004000000 has 1512 divisors, whose sum is σ = 2055151818720. Its totient is φ = 116121600000.

The previous prime is 500003999993. The next prime is 500004000007. The reversal of 500004000000 is 400005.

It is an interprime number because it is at equal distance from previous prime (500003999993) and next prime (500004000007).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is not an unprimeable number, because it can be changed into a prime (500004000007) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 11627999979 + ... + 11628000021.

Almost surely, 2^500004000000 is an apocalyptic number.

500004000000 is a gapful number since it is divisible by the number (50) 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 500004000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1027575909360).

500004000000 is an abundant number, since it is smaller than the sum of its proper divisors (1555147818720).

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

500004000000 is an equidigital number, since it uses as much as digits as its factorization.

500004000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 9.

Adding to 500004000000 its reverse (400005), we get a palindrome (500004400005).

The spelling of 500004000000 in words is "five hundred billion, four million", and thus it is an aban number.