5161706689 has 2 divisors, whose sum is σ = 5161706690. Its totient is φ = 5161706688.

The previous prime is 5161706659. The next prime is 5161706749. The reversal of 5161706689 is 9866071615.

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., 5109390400 + 52316289 = 71480^2 + 7233^2 .

It is a cyclic number.

It is not a de Polignac number, because 5161706689 - 2⁵ = 5161706657 is a prime.

It is not a weakly prime, because it can be changed into another prime (5161706609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2580853344 + 2580853345.

It is an arithmetic number, because the mean of its divisors is an integer number (2580853345).

Almost surely, 2^5161706689 is an apocalyptic number.

It is an amenable number.

5161706689 is a deficient number, since it is larger than the sum of its proper divisors (1).

5161706689 is an equidigital number, since it uses as much as digits as its factorization.

5161706689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 5161706689 is about 71845.0185399099. The cubic root of 5161706689 is about 1728.2150153657.

The spelling of 5161706689 in words is "five billion, one hundred sixty-one million, seven hundred six thousand, six hundred eighty-nine".