43956499132 has 72 divisors (see below), whose sum is σ = 95319845376. Its totient is φ = 17366716224.

The previous prime is 43956499051. The next prime is 43956499133. The reversal of 43956499132 is 23199465934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43956499133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3888793 + ... + 3900079.

Almost surely, 2^43956499132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43956499132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47659922688).

43956499132 is an abundant number, since it is smaller than the sum of its proper divisors (51363346244).

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

43956499132 is a wasteful number, since it uses less digits than its factorization.

43956499132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12147 (or 12132 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 55.

The spelling of 43956499132 in words is "forty-three billion, nine hundred fifty-six million, four hundred ninety-nine thousand, one hundred thirty-two".