5679129581 has 2 divisors, whose sum is σ = 5679129582. Its totient is φ = 5679129580.

The previous prime is 5679129569. The next prime is 5679129607. The reversal of 5679129581 is 1859219765.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5653536100 + 25593481 = 75190^2 + 5059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5679129581 is a prime.

It is a super-2 number, since 2×5679129581² = 64505025595578471122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5679129481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2839564790 + 2839564791.

It is an arithmetic number, because the mean of its divisors is an integer number (2839564791).

Almost surely, 2^5679129581 is an apocalyptic number.

It is an amenable number.

5679129581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5679129581 is an equidigital number, since it uses as much as digits as its factorization.

5679129581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 53.

The square root of 5679129581 is about 75359.9998739384. Note that the first 3 decimals coincide. The cubic root of 5679129581 is about 1784.1331364047.

The spelling of 5679129581 in words is "five billion, six hundred seventy-nine million, one hundred twenty-nine thousand, five hundred eighty-one".