40136856632543 has 4 divisors (see below), whose sum is σ = 43785661780968. Its totient is φ = 36488051484120.

The previous prime is 40136856632513. The next prime is 40136856632581. The reversal of 40136856632543 is 34523665863104.

40136856632543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40136856632543 - 2¹⁴ = 40136856616159 is a prime.

It is a super-2 number, since 2×40136856632543² (a number of 28 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 (40136856632513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1824402574196 + ... + 1824402574217.

It is an arithmetic number, because the mean of its divisors is an integer number (10946415445242).

Almost surely, 2^{40136856632543} is an apocalyptic number.

40136856632543 is a deficient number, since it is larger than the sum of its proper divisors (3648805148425).

40136856632543 is a wasteful number, since it uses less digits than its factorization.

40136856632543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648805148424.

The product of its (nonzero) digits is 37324800, while the sum is 56.

The spelling of 40136856632543 in words is "forty trillion, one hundred thirty-six billion, eight hundred fifty-six million, six hundred thirty-two thousand, five hundred forty-three".