43132476821 has 12 divisors (see below), whose sum is σ = 52815278880. Its totient is φ = 35024867640.

The previous prime is 43132476799. The next prime is 43132476841. The reversal of 43132476821 is 12867423134.

43132476821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43132476821 - 2²² = 43128282517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43132476841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23163665 + ... + 23165526.

It is an arithmetic number, because the mean of its divisors is an integer number (4401273240).

Almost surely, 2^43132476821 is an apocalyptic number.

It is an amenable number.

43132476821 is a deficient number, since it is larger than the sum of its proper divisors (9682802059).

43132476821 is a wasteful number, since it uses less digits than its factorization.

43132476821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46329224 (or 46329217 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

Adding to 43132476821 its reverse (12867423134), we get a palindrome (55999899955).

The spelling of 43132476821 in words is "forty-three billion, one hundred thirty-two million, four hundred seventy-six thousand, eight hundred twenty-one".