999982000000 has 224 divisors, whose sum is σ = 2522077092000. Its totient is φ = 394867200000.

The previous prime is 999981999983. The next prime is 999982000009. The reversal of 999982000000 is 289999.

It is a happy number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999982000009) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 157996836 + ... + 158003164.

Almost surely, 2^999982000000 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 999982000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1261038546000).

999982000000 is an abundant number, since it is smaller than the sum of its proper divisors (1522095092000).

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

999982000000 is an frugal number, since it uses more digits than its factorization.

999982000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6452 (or 6415 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 46.

Adding to 999982000000 its reverse (289999), we get a palindrome (999982289999).

The spelling of 999982000000 in words is "nine hundred ninety-nine billion, nine hundred eighty-two million", and thus it is an aban number.