43431132152 has 8 divisors (see below), whose sum is σ = 81433372800. Its totient is φ = 21715566072.

The previous prime is 43431132133. The next prime is 43431132167. The reversal of 43431132152 is 25123113434.

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

It is a super-2 number, since 2×43431132152² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2714445752 + ... + 2714445767.

It is an arithmetic number, because the mean of its divisors is an integer number (10179171600).

Almost surely, 2^43431132152 is an apocalyptic number.

It is an amenable number.

43431132152 is a deficient number, since it is larger than the sum of its proper divisors (38002240648).

43431132152 is a wasteful number, since it uses less digits than its factorization.

43431132152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428891525 (or 5428891521 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

Adding to 43431132152 its reverse (25123113434), we get a palindrome (68554245586).

The spelling of 43431132152 in words is "forty-three billion, four hundred thirty-one million, one hundred thirty-two thousand, one hundred fifty-two".