40132640344631 has 8 divisors (see below), whose sum is σ = 41066043106704. Its totient is φ = 39199241471040.

The previous prime is 40132640344507. The next prime is 40132640344663. The reversal of 40132640344631 is 13644304623104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40132640344631 - 2³⁸ = 39857762437687 is a prime.

It is a super-2 number, since 2×40132640344631² (a number of 28 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 (40132640344231) 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 7 ways as a sum of consecutive naturals, for example, 36617165 + ... + 37697241.

It is an arithmetic number, because the mean of its divisors is an integer number (5133255388338).

Almost surely, 2^{40132640344631} is an apocalyptic number.

40132640344631 is a deficient number, since it is larger than the sum of its proper divisors (933402762073).

40132640344631 is a wasteful number, since it uses less digits than its factorization.

40132640344631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944241.

The product of its (nonzero) digits is 497664, while the sum is 41.

Adding to 40132640344631 its reverse (13644304623104), we get a palindrome (53776944967735).

The spelling of 40132640344631 in words is "forty trillion, one hundred thirty-two billion, six hundred forty million, three hundred forty-four thousand, six hundred thirty-one".