43963569428 has 6 divisors (see below), whose sum is σ = 76936246506. Its totient is φ = 21981784712.

The previous prime is 43963569329. The next prime is 43963569431. The reversal of 43963569428 is 82496536934.

43963569428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 23071179664 + 20892389764 = 151892^2 + 144542^2 .

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, 5495446175 + ... + 5495446182.

It is an arithmetic number, because the mean of its divisors is an integer number (12822707751).

Almost surely, 2^43963569428 is an apocalyptic number.

It is an amenable number.

43963569428 is a deficient number, since it is larger than the sum of its proper divisors (32972677078).

43963569428 is a wasteful number, since it uses less digits than its factorization.

43963569428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10990892361 (or 10990892359 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 59.

The spelling of 43963569428 in words is "forty-three billion, nine hundred sixty-three million, five hundred sixty-nine thousand, four hundred twenty-eight".