999045000000 has 504 divisors, whose sum is σ = 3603652981656. Its totient is φ = 264624000000.

The previous prime is 999044999969. The next prime is 999045000047. The reversal of 999045000000 is 540999.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

999045000000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 58967380224 + 940077619776 = 242832^2 + 969576^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6704999926 + ... + 6705000074.

Almost surely, 2^999045000000 is an apocalyptic number.

999045000000 is a gapful number since it is divisible by the number (90) 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 999045000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1801826490828).

999045000000 is an abundant number, since it is smaller than the sum of its proper divisors (2604607981656).

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

999045000000 is an frugal number, since it uses more digits than its factorization.

999045000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

Adding to 999045000000 its reverse (540999), we get a palindrome (999045540999).

The spelling of 999045000000 in words is "nine hundred ninety-nine billion, forty-five million", and thus it is an aban number.