40540412145 has 32 divisors (see below), whose sum is σ = 68201616384. Its totient is φ = 20523588800.

The previous prime is 40540412137. The next prime is 40540412149. The reversal of 40540412145 is 54121404504.

It is not a de Polignac number, because 40540412145 - 2³ = 40540412137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40540412149) 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 31 ways as a sum of consecutive naturals, for example, 403311 + ... + 493700.

It is an arithmetic number, because the mean of its divisors is an integer number (2131300512).

Almost surely, 2^40540412145 is an apocalyptic number.

It is an amenable number.

40540412145 is a deficient number, since it is larger than the sum of its proper divisors (27661204239).

40540412145 is a wasteful number, since it uses less digits than its factorization.

40540412145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897173.

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 40540412145 its reverse (54121404504), we get a palindrome (94661816649).

The spelling of 40540412145 in words is "forty billion, five hundred forty million, four hundred twelve thousand, one hundred forty-five".