549138304000 has 704 divisors, whose sum is σ = 1695269721600. Its totient is φ = 174514176000.

The previous prime is 549138303997. The next prime is 549138304031. The reversal of 549138304000 is 403831945.

It is a tau number, because it is divible by the number of its divisors (704).

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, 347775211 + ... + 347776789.

Almost surely, 2^549138304000 is an apocalyptic number.

549138304000 is a gapful number since it is divisible by the number (50) 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 549138304000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847634860800).

549138304000 is an abundant number, since it is smaller than the sum of its proper divisors (1146131417600).

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

549138304000 is a wasteful number, since it uses less digits than its factorization.

549138304000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657 (or 1629 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 549138304000 in words is "five hundred forty-nine billion, one hundred thirty-eight million, three hundred four thousand".