3999499455200 has 144 divisors (see below), whose sum is σ = 10015441533216. Its totient is φ = 1558670131200.

The previous prime is 3999499455143. The next prime is 3999499455221. The reversal of 3999499455200 is 25549949993.

3999499455200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24288344 + ... + 24452456.

It is an arithmetic number, because the mean of its divisors is an integer number (69551677314).

Almost surely, 2^{3999499455200} 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 3999499455200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5007720766608).

3999499455200 is an abundant number, since it is smaller than the sum of its proper divisors (6015942078016).

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

3999499455200 is a wasteful number, since it uses less digits than its factorization.

3999499455200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164917 (or 164904 counting only the distinct ones).

The product of its (nonzero) digits is 141717600, while the sum is 68.

The spelling of 3999499455200 in words is "three trillion, nine hundred ninety-nine billion, four hundred ninety-nine million, four hundred fifty-five thousand, two hundred".