40131286545 has 32 divisors (see below), whose sum is σ = 73562423040. Its totient is φ = 18300856320.

The previous prime is 40131286513. The next prime is 40131286553. The reversal of 40131286545 is 54568213104.

It is not a de Polignac number, because 40131286545 - 2⁵ = 40131286513 is a prime.

It is a super-2 number, since 2×40131286545² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424296 + ... + 510185.

It is an arithmetic number, because the mean of its divisors is an integer number (2298825720).

Almost surely, 2^40131286545 is an apocalyptic number.

It is an amenable number.

40131286545 is a deficient number, since it is larger than the sum of its proper divisors (33431136495).

40131286545 is a wasteful number, since it uses less digits than its factorization.

40131286545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934905.

The product of its (nonzero) digits is 115200, while the sum is 39.

Adding to 40131286545 its reverse (54568213104), we get a palindrome (94699499649).

The spelling of 40131286545 in words is "forty billion, one hundred thirty-one million, two hundred eighty-six thousand, five hundred forty-five".