549428011200 has 672 divisors, whose sum is σ = 2141082961920. Its totient is φ = 136715673600.

The previous prime is 549428011183. The next prime is 549428011201. The reversal of 549428011200 is 2110824945.

549428011200 is a `hidden beast` number, since 549 + 4 + 2 + 80 + 11 + 20 + 0 = 666.

It is a super-2 number, since 2×549428011200² (a number of 24 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (549428011201) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 40730857 + ... + 40744343.

It is an arithmetic number, because the mean of its divisors is an integer number (3186135360).

Almost surely, 2^549428011200 is an apocalyptic number.

549428011200 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 549428011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1070541480960).

549428011200 is an abundant number, since it is smaller than the sum of its proper divisors (1591654950720).

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

549428011200 is a wasteful number, since it uses less digits than its factorization.

549428011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13582 (or 13561 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 549428011200 in words is "five hundred forty-nine billion, four hundred twenty-eight million, eleven thousand, two hundred".