43132438881 has 48 divisors (see below), whose sum is σ = 72672870400. Its totient is φ = 24143150304.

The previous prime is 43132438837. The next prime is 43132438883. The reversal of 43132438881 is 18883423134.

43132438881 is a `hidden beast` number, since 4 + 3 + 132 + 438 + 8 + 81 = 666.

It is not a de Polignac number, because 43132438881 - 2¹⁴ = 43132422497 is a prime.

It is a super-2 number, since 2×43132438881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43132438883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 597960 + ... + 666198.

Almost surely, 2^43132438881 is an apocalyptic number.

It is an amenable number.

43132438881 is a deficient number, since it is larger than the sum of its proper divisors (29540431519).

43132438881 is a wasteful number, since it uses less digits than its factorization.

43132438881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68458 (or 68455 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The spelling of 43132438881 in words is "forty-three billion, one hundred thirty-two million, four hundred thirty-eight thousand, eight hundred eighty-one".