40013252529 has 24 divisors (see below), whose sum is σ = 56961831168. Its totient is φ = 24978804480.

The previous prime is 40013252491. The next prime is 40013252533. The reversal of 40013252529 is 92525231004.

It is not a de Polignac number, because 40013252529 - 2⁸ = 40013252273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40013252529.

It is not an unprimeable number, because it can be changed into a prime (40013252029) 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 23 ways as a sum of consecutive naturals, for example, 53664 + ... + 287934.

It is an arithmetic number, because the mean of its divisors is an integer number (2373409632).

Almost surely, 2^40013252529 is an apocalyptic number.

It is an amenable number.

40013252529 is a deficient number, since it is larger than the sum of its proper divisors (16948578639).

40013252529 is a wasteful number, since it uses less digits than its factorization.

40013252529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234505 (or 234488 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 40013252529 in words is "forty billion, thirteen million, two hundred fifty-two thousand, five hundred twenty-nine".