5166619847 has 4 divisors (see below), whose sum is σ = 5166920376. Its totient is φ = 5166319320.

The previous prime is 5166619817. The next prime is 5166619873. The reversal of 5166619847 is 7489166615.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5166619847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5166619817) 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, 122804 + ... + 159417.

It is an arithmetic number, because the mean of its divisors is an integer number (1291730094).

Almost surely, 2^5166619847 is an apocalyptic number.

5166619847 is a deficient number, since it is larger than the sum of its proper divisors (300529).

5166619847 is a wasteful number, since it uses less digits than its factorization.

5166619847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300528.

The product of its digits is 2177280, while the sum is 53.

The square root of 5166619847 is about 71879.2031605805. The cubic root of 5166619847 is about 1728.7631739058.

The spelling of 5166619847 in words is "five billion, one hundred sixty-six million, six hundred nineteen thousand, eight hundred forty-seven".