5161394677 has 2 divisors, whose sum is σ = 5161394678. Its totient is φ = 5161394676.

The previous prime is 5161394671. The next prime is 5161394699. The reversal of 5161394677 is 7764931615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3691899121 + 1469495556 = 60761^2 + 38334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5161394677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5161394677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5161394671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2580697338 + 2580697339.

It is an arithmetic number, because the mean of its divisors is an integer number (2580697339).

Almost surely, 2^5161394677 is an apocalyptic number.

It is an amenable number.

5161394677 is a deficient number, since it is larger than the sum of its proper divisors (1).

5161394677 is an equidigital number, since it uses as much as digits as its factorization.

5161394677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 49.

The square root of 5161394677 is about 71842.8470830604. The cubic root of 5161394677 is about 1728.1801926013.

The spelling of 5161394677 in words is "five billion, one hundred sixty-one million, three hundred ninety-four thousand, six hundred seventy-seven".