4681275561 has 12 divisors (see below), whose sum is σ = 6762479620. Its totient is φ = 3120556320.

The previous prime is 4681275523. The next prime is 4681275569. The reversal of 4681275561 is 1655721864.

4681275561 is a `hidden beast` number, since 4 + 6 + 8 + 12 + 75 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2616936336 + 2064339225 = 51156^2 + 45435^2 .

It is not a de Polignac number, because 4681275561 - 2¹⁰ = 4681274537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4681275569) 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, 123135 + ... + 156603.

Almost surely, 2^4681275561 is an apocalyptic number.

It is an amenable number.

4681275561 is a deficient number, since it is larger than the sum of its proper divisors (2081204059).

4681275561 is a wasteful number, since it uses less digits than its factorization.

4681275561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49016 (or 49013 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 4681275561 is about 68419.8477124876. The cubic root of 4681275561 is about 1672.8412747110.

The spelling of 4681275561 in words is "four billion, six hundred eighty-one million, two hundred seventy-five thousand, five hundred sixty-one".