4043454561 has 12 divisors (see below), whose sum is σ = 5976372688. Its totient is φ = 2632946904.

The previous prime is 4043454559. The next prime is 4043454599. The reversal of 4043454561 is 1654543404.

4043454561 is a `hidden beast` number, since 4 + 0 + 43 + 4 + 54 + 561 = 666.

It is not a de Polignac number, because 4043454561 - 2¹ = 4043454559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4043454521) 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, 5223715 + ... + 5224488.

Almost surely, 2^4043454561 is an apocalyptic number.

It is an amenable number.

4043454561 is a deficient number, since it is larger than the sum of its proper divisors (1932918127).

4043454561 is a wasteful number, since it uses less digits than its factorization.

4043454561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10448252 (or 10448249 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 4043454561 is about 63588.1636863340. The cubic root of 4043454561 is about 1593.1286787976.

Adding to 4043454561 its reverse (1654543404), we get a palindrome (5697997965).

The spelling of 4043454561 in words is "four billion, forty-three million, four hundred fifty-four thousand, five hundred sixty-one".