43123885543004 has 96 divisors (see below), whose sum is σ = 91840950835200. Its totient is φ = 17676846130944.

The previous prime is 43123885542917. The next prime is 43123885543007. The reversal of 43123885543004 is 40034558832134.

43123885543004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×43123885543004² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43123885543007) 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 31 ways as a sum of consecutive naturals, for example, 530825972 + ... + 530907204.

It is an arithmetic number, because the mean of its divisors is an integer number (956676571200).

Almost surely, 2^{43123885543004} 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 43123885543004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45920475417600).

43123885543004 is an abundant number, since it is smaller than the sum of its proper divisors (48717065292196).

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

43123885543004 is a wasteful number, since it uses less digits than its factorization.

43123885543004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98104 (or 98088 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 50.

The spelling of 43123885543004 in words is "forty-three trillion, one hundred twenty-three billion, eight hundred eighty-five million, five hundred forty-three thousand, four".