40540354210405 has 16 divisors (see below), whose sum is σ = 56268057896064. Its totient is φ = 27464171112000.

The previous prime is 40540354210379. The next prime is 40540354210409. The reversal of 40540354210405 is 50401245304504.

40540354210405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40540354210405 - 2¹¹ = 40540354208357 is a prime.

It is a super-2 number, since 2×40540354210405² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40540354210409) 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 15 ways as a sum of consecutive naturals, for example, 6977682846 + ... + 6977688655.

It is an arithmetic number, because the mean of its divisors is an integer number (3516753618504).

Almost surely, 2^{40540354210405} is an apocalyptic number.

It is an amenable number.

40540354210405 is a deficient number, since it is larger than the sum of its proper divisors (15727703685659).

40540354210405 is a wasteful number, since it uses less digits than its factorization.

40540354210405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13955371596.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 40540354210405 its reverse (50401245304504), we get a palindrome (90941599514909).

The spelling of 40540354210405 in words is "forty trillion, five hundred forty billion, three hundred fifty-four million, two hundred ten thousand, four hundred five".