40632641652 has 12 divisors (see below), whose sum is σ = 94809497216. Its totient is φ = 13544213880.

The previous prime is 40632641603. The next prime is 40632641659. The reversal of 40632641652 is 25614623604.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 40632641652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40632641659) 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 3 ways as a sum of consecutive naturals, for example, 1693026724 + ... + 1693026747.

Almost surely, 2^40632641652 is an apocalyptic number.

It is an amenable number.

40632641652 is an abundant number, since it is smaller than the sum of its proper divisors (54176855564).

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

40632641652 is a wasteful number, since it uses less digits than its factorization.

40632641652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386053478 (or 3386053476 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 40632641652 in words is "forty billion, six hundred thirty-two million, six hundred forty-one thousand, six hundred fifty-two".