40012451534543 has 8 divisors (see below), whose sum is σ = 42366259223568. Its totient is φ = 37658658742144.

The previous prime is 40012451534513. The next prime is 40012451534551. The reversal of 40012451534543 is 34543515421004.

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 40012451534543 - 2³⁰ = 40011377792719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40012451534543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40012451534513) 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, 2062805 + ... + 9180417.

It is an arithmetic number, because the mean of its divisors is an integer number (5295782402946).

Almost surely, 2^{40012451534543} is an apocalyptic number.

40012451534543 is a deficient number, since it is larger than the sum of its proper divisors (2353807689025).

40012451534543 is a wasteful number, since it uses less digits than its factorization.

40012451534543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7448313.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 40012451534543 its reverse (34543515421004), we get a palindrome (74555966955547).

The spelling of 40012451534543 in words is "forty trillion, twelve billion, four hundred fifty-one million, five hundred thirty-four thousand, five hundred forty-three".