40043144553 has 8 divisors (see below), whose sum is σ = 54526835328. Its totient is φ = 26127441744.

The previous prime is 40043144549. The next prime is 40043144563. The reversal of 40043144553 is 35544134004.

It is a happy number.

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

It is not a de Polignac number, because 40043144553 - 2² = 40043144549 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40043144563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141996826 + ... + 141997107.

It is an arithmetic number, because the mean of its divisors is an integer number (6815854416).

Almost surely, 2^40043144553 is an apocalyptic number.

It is an amenable number.

40043144553 is a deficient number, since it is larger than the sum of its proper divisors (14483690775).

40043144553 is a wasteful number, since it uses less digits than its factorization.

40043144553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283993983.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 40043144553 its reverse (35544134004), we get a palindrome (75587278557).

The spelling of 40043144553 in words is "forty billion, forty-three million, one hundred forty-four thousand, five hundred fifty-three".