40043556743 has 8 divisors (see below), whose sum is σ = 40900593600. Its totient is φ = 39186730240.

The previous prime is 40043556739. The next prime is 40043556769. The reversal of 40043556743 is 34765534004.

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 40043556743 - 2² = 40043556739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40043556743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40043556733) 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, 367763 + ... + 464043.

It is an arithmetic number, because the mean of its divisors is an integer number (5112574200).

Almost surely, 2^40043556743 is an apocalyptic number.

40043556743 is a deficient number, since it is larger than the sum of its proper divisors (857036857).

40043556743 is an equidigital number, since it uses as much as digits as its factorization.

40043556743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105177.

The product of its (nonzero) digits is 604800, while the sum is 41.

The spelling of 40043556743 in words is "forty billion, forty-three million, five hundred fifty-six thousand, seven hundred forty-three".