40254313013 has 4 divisors (see below), whose sum is σ = 40265947308. Its totient is φ = 40242678720.

The previous prime is 40254313003. The next prime is 40254313079. The reversal of 40254313013 is 31031345204.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5308871044 + 34945441969 = 72862^2 + 186937^2 .

It is a cyclic number.

It is not a de Polignac number, because 40254313013 - 2⁴ = 40254312997 is a prime.

It is a super-2 number, since 2×40254313013² (a number of 22 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 (40254313003) 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 3 ways as a sum of consecutive naturals, for example, 5811956 + ... + 5818877.

It is an arithmetic number, because the mean of its divisors is an integer number (10066486827).

Almost surely, 2^40254313013 is an apocalyptic number.

It is an amenable number.

40254313013 is a deficient number, since it is larger than the sum of its proper divisors (11634295).

40254313013 is a wasteful number, since it uses less digits than its factorization.

40254313013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11634294.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 40254313013 its reverse (31031345204), we get a palindrome (71285658217).

The spelling of 40254313013 in words is "forty billion, two hundred fifty-four million, three hundred thirteen thousand, thirteen".