5691289761 has 6 divisors (see below), whose sum is σ = 8220751890. Its totient is φ = 3794193168.

The previous prime is 5691289739. The next prime is 5691289771. The reversal of 5691289761 is 1679821965.

5691289761 is a `hidden beast` number, since 569 + 1 + 2 + 8 + 9 + 76 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5461949025 + 229340736 = 73905^2 + 15144^2 .

It is not a de Polignac number, because 5691289761 - 2¹⁰ = 5691288737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5691289698 and 5691289707.

It is not an unprimeable number, because it can be changed into a prime (5691289771) 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, 316182756 + ... + 316182773.

It is an arithmetic number, because the mean of its divisors is an integer number (1370125315).

Almost surely, 2^5691289761 is an apocalyptic number.

It is an amenable number.

5691289761 is a deficient number, since it is larger than the sum of its proper divisors (2529462129).

5691289761 is a wasteful number, since it uses less digits than its factorization.

5691289761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632365535 (or 632365532 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 5691289761 is about 75440.6373316133. The cubic root of 5691289761 is about 1785.4056268111.

The spelling of 5691289761 in words is "five billion, six hundred ninety-one million, two hundred eighty-nine thousand, seven hundred sixty-one".