3871231585432 has 8 divisors (see below), whose sum is σ = 7258559222700. Its totient is φ = 1935615792712.

The previous prime is 3871231585427. The next prime is 3871231585477. The reversal of 3871231585432 is 2345851321783.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 3871231585432.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 241951974082 + ... + 241951974097.

Almost surely, 2^{3871231585432} is an apocalyptic number.

It is an amenable number.

3871231585432 is a deficient number, since it is larger than the sum of its proper divisors (3387327637268).

3871231585432 is a wasteful number, since it uses less digits than its factorization.

3871231585432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483903948185 (or 483903948181 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 52.

The spelling of 3871231585432 in words is "three trillion, eight hundred seventy-one billion, two hundred thirty-one million, five hundred eighty-five thousand, four hundred thirty-two".