5163971689 has 4 divisors (see below), whose sum is σ = 5289922260. Its totient is φ = 5038021120.

The previous prime is 5163971647. The next prime is 5163971693. The reversal of 5163971689 is 9861793615.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1870130025 + 3293841664 = 43245^2 + 57392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5163971689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5163971389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62975224 + ... + 62975305.

It is an arithmetic number, because the mean of its divisors is an integer number (1322480565).

Almost surely, 2^5163971689 is an apocalyptic number.

It is an amenable number.

5163971689 is a deficient number, since it is larger than the sum of its proper divisors (125950571).

5163971689 is a wasteful number, since it uses less digits than its factorization.

5163971689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125950570.

The product of its digits is 2449440, while the sum is 55.

The square root of 5163971689 is about 71860.7799080973. The cubic root of 5163971689 is about 1728.4677634603.

The spelling of 5163971689 in words is "five billion, one hundred sixty-three million, nine hundred seventy-one thousand, six hundred eighty-nine".