999204404352 has 512 divisors, whose sum is σ = 3441645158400. Its totient is φ = 249231360000.

The previous prime is 999204404321. The next prime is 999204404353. The reversal of 999204404352 is 253404402999.

It is a junction number, because it is equal to n+sod(n) for n = 999204404295 and 999204404304.

It is not an unprimeable number, because it can be changed into a prime (999204404353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 163774102 + ... + 163780202.

It is an arithmetic number, because the mean of its divisors is an integer number (6721963200).

Almost surely, 2^999204404352 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 999204404352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1720822579200).

999204404352 is an abundant number, since it is smaller than the sum of its proper divisors (2442440754048).

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

999204404352 is a wasteful number, since it uses less digits than its factorization.

999204404352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356 (or 6344 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 999204404352 in words is "nine hundred ninety-nine billion, two hundred four million, four hundred four thousand, three hundred fifty-two".