4681569561 has 16 divisors (see below), whose sum is σ = 6385353984. Its totient is φ = 3049633664.

The previous prime is 4681569551. The next prime is 4681569577. The reversal of 4681569561 is 1659651864.

It is a cyclic number.

It is not a de Polignac number, because 4681569561 - 2¹⁹ = 4681045273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4681569551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60091 + ... + 113903.

It is an arithmetic number, because the mean of its divisors is an integer number (399084624).

Almost surely, 2^4681569561 is an apocalyptic number.

It is an amenable number.

4681569561 is a deficient number, since it is larger than the sum of its proper divisors (1703784423).

4681569561 is a wasteful number, since it uses less digits than its factorization.

4681569561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54480.

The product of its digits is 1555200, while the sum is 51.

The square root of 4681569561 is about 68421.9961781297. The cubic root of 4681569561 is about 1672.8762940152.

The spelling of 4681569561 in words is "four billion, six hundred eighty-one million, five hundred sixty-nine thousand, five hundred sixty-one".