40231340545 has 16 divisors (see below), whose sum is σ = 54482569920. Its totient is φ = 28250219200.

The previous prime is 40231340533. The next prime is 40231340551. The reversal of 40231340545 is 54504313204.

It is not a de Polignac number, because 40231340545 - 2¹⁹ = 40230816257 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12610111 + ... + 12613300.

It is an arithmetic number, because the mean of its divisors is an integer number (3405160620).

Almost surely, 2^40231340545 is an apocalyptic number.

It is an amenable number.

40231340545 is a deficient number, since it is larger than the sum of its proper divisors (14251229375).

40231340545 is a wasteful number, since it uses less digits than its factorization.

40231340545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25223456.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 40231340545 its reverse (54504313204), we get a palindrome (94735653749).

The spelling of 40231340545 in words is "forty billion, two hundred thirty-one million, three hundred forty thousand, five hundred forty-five".