5781064617 has 6 divisors (see below), whose sum is σ = 8350426682. Its totient is φ = 3854043072.

The previous prime is 5781064579. The next prime is 5781064631. The reversal of 5781064617 is 7164601875.

5781064617 is a `hidden beast` number, since 578 + 1 + 0 + 64 + 6 + 17 = 666.

5781064617 is digitally balanced in base 3, 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., 5460618816 + 320445801 = 73896^2 + 17901^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5781064617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5781064637) 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, 321170248 + ... + 321170265.

Almost surely, 2^5781064617 is an apocalyptic number.

It is an amenable number.

5781064617 is a deficient number, since it is larger than the sum of its proper divisors (2569362065).

5781064617 is a wasteful number, since it uses less digits than its factorization.

5781064617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642340519 (or 642340516 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 5781064617 is about 76033.3125478563. The cubic root of 5781064617 is about 1794.7444040335.

The spelling of 5781064617 in words is "five billion, seven hundred eighty-one million, sixty-four thousand, six hundred seventeen".