1000005000000 has 448 divisors, whose sum is σ = 3335725835520. Its totient is φ = 264384000000.

The previous prime is 1000004999989. The next prime is 1000005000013. The reversal of 1000005000000 is 5000001.

It is a Harshad number since it is a multiple of its sum of digits (6).

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

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 63 ways as a sum of consecutive naturals, for example, 2444999796 + ... + 2445000204.

Almost surely, 2^{1000005000000} is an apocalyptic number.

1000005000000 is a gapful number since it is divisible by the number (10) 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 1000005000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1667862917760).

1000005000000 is an abundant number, since it is smaller than the sum of its proper divisors (2335720835520).

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

1000005000000 is an frugal number, since it uses more digits than its factorization.

1000005000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 5, while the sum is 6.

Subtracting from 1000005000000 its reverse (5000001), we obtain a palindrome (999999999999).

The spelling of 1000005000000 in words is "one trillion, five million", and thus it is an aban number and an uban number.