543540400000000 has 396 divisors, whose sum is σ = 1462676704234144. Its totient is φ = 200689920000000.

The previous prime is 543540399999983. The next prime is 543540400000001. The reversal of 543540400000000 is 4045345.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (543540400000001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5199947737 + ... + 5200052263.

Almost surely, 2^{543540400000000} is an apocalyptic number.

543540400000000 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 543540400000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731338352117072).

543540400000000 is an abundant number, since it is smaller than the sum of its proper divisors (919136304234144).

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

543540400000000 is an frugal number, since it uses more digits than its factorization.

543540400000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104600 (or 104547 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 543540400000000 its reverse (4045345), we get a palindrome (543540404045345).

The spelling of 543540400000000 in words is "five hundred forty-three trillion, five hundred forty billion, four hundred million", and thus it is an aban number.