543111430400 has 864 divisors, whose sum is σ = 1788568024320. Its totient is φ = 158072832000.

The previous prime is 543111430369. The next prime is 543111430481. The reversal of 543111430400 is 4034111345.

It is a happy number.

It is a super-2 number, since 2×543111430400² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 543111430400.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2019001466 + ... + 2019001734.

It is an arithmetic number, because the mean of its divisors is an integer number (2070101880).

Almost surely, 2^543111430400 is an apocalyptic number.

543111430400 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 543111430400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894284012160).

543111430400 is an abundant number, since it is smaller than the sum of its proper divisors (1245456593920).

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

543111430400 is a wasteful number, since it uses less digits than its factorization.

543111430400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 543111430400 its reverse (4034111345), we get a palindrome (547145541745).

The spelling of 543111430400 in words is "five hundred forty-three billion, one hundred eleven million, four hundred thirty thousand, four hundred".