40013126532 has 36 divisors (see below), whose sum is σ = 106467677680. Its totient is φ = 12635723952.

The previous prime is 40013126501. The next prime is 40013126539. The reversal of 40013126532 is 23562131004.

40013126532 is a `hidden beast` number, since 4 + 0 + 0 + 1 + 3 + 1 + 2 + 653 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 40013126496 and 40013126505.

It is not an unprimeable number, because it can be changed into a prime (40013126539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29248678 + ... + 29250045.

Almost surely, 2^40013126532 is an apocalyptic number.

It is an amenable number.

40013126532 is an abundant number, since it is smaller than the sum of its proper divisors (66454551148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40013126532 is a wasteful number, since it uses less digits than its factorization.

40013126532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58498752 (or 58498747 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 40013126532 its reverse (23562131004), we get a palindrome (63575257536).

The spelling of 40013126532 in words is "forty billion, thirteen million, one hundred twenty-six thousand, five hundred thirty-two".