40144400543 has 16 divisors (see below), whose sum is σ = 43835988000. Its totient is φ = 36542620800.

The previous prime is 40144400539. The next prime is 40144400579. The reversal of 40144400543 is 34500444104.

It is a cyclic number.

It is not a de Polignac number, because 40144400543 - 2² = 40144400539 is a prime.

It is a super-2 number, since 2×40144400543² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144400533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194693 + ... + 343793.

It is an arithmetic number, because the mean of its divisors is an integer number (2739749250).

Almost surely, 2^40144400543 is an apocalyptic number.

40144400543 is a deficient number, since it is larger than the sum of its proper divisors (3691587457).

40144400543 is a wasteful number, since it uses less digits than its factorization.

40144400543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149402.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 40144400543 its reverse (34500444104), we get a palindrome (74644844647).

The spelling of 40144400543 in words is "forty billion, one hundred forty-four million, four hundred thousand, five hundred forty-three".