1040443115543 has 8 divisors (see below), whose sum is σ = 1139468341200. Its totient is φ = 944130909888.

The previous prime is 1040443115527. The next prime is 1040443115581. The reversal of 1040443115543 is 3455113440401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1040443115543 - 2⁴ = 1040443115527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040443112543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678254198 + ... + 678255731.

It is an arithmetic number, because the mean of its divisors is an integer number (142433542650).

Almost surely, 2^{1040443115543} is an apocalyptic number.

1040443115543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1040443115543 is a deficient number, since it is larger than the sum of its proper divisors (99025225657).

1040443115543 is a wasteful number, since it uses less digits than its factorization.

1040443115543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356510001.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 1040443115543 its reverse (3455113440401), we get a palindrome (4495556555944).

The spelling of 1040443115543 in words is "one trillion, forty billion, four hundred forty-three million, one hundred fifteen thousand, five hundred forty-three".