3546843561 has 6 divisors (see below), whose sum is σ = 5123218490. Its totient is φ = 2364562368.

The previous prime is 3546843557. The next prime is 3546843583. The reversal of 3546843561 is 1653486453.

3546843561 is a `hidden beast` number, since 3 + 5 + 4 + 6 + 84 + 3 + 561 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2874997161 + 671846400 = 53619^2 + 25920^2 .

It is not a de Polignac number, because 3546843561 - 2² = 3546843557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3546843551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197046856 + ... + 197046873.

Almost surely, 2^3546843561 is an apocalyptic number.

It is an amenable number.

3546843561 is a deficient number, since it is larger than the sum of its proper divisors (1576374929).

3546843561 is a wasteful number, since it uses less digits than its factorization.

3546843561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394093735 (or 394093732 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 3546843561 is about 59555.3823008467. The cubic root of 3546843561 is about 1525.0380441642.

The spelling of 3546843561 in words is "three billion, five hundred forty-six million, eight hundred forty-three thousand, five hundred sixty-one".