5178768071 has 4 divisors (see below), whose sum is σ = 5179328232. Its totient is φ = 5178207912.

The previous prime is 5178768047. The next prime is 5178768083. The reversal of 5178768071 is 1708678715.

It is a happy number.

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-5178768071 is a prime.

It is a super-2 number, since 2×5178768071² = 53639277466418122082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5178767071) 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, 265976 + ... + 284781.

It is an arithmetic number, because the mean of its divisors is an integer number (1294832058).

Almost surely, 2^5178768071 is an apocalyptic number.

5178768071 is a deficient number, since it is larger than the sum of its proper divisors (560161).

5178768071 is an equidigital number, since it uses as much as digits as its factorization.

5178768071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560160.

The product of its (nonzero) digits is 658560, while the sum is 50.

The square root of 5178768071 is about 71963.6579879039. The cubic root of 5178768071 is about 1730.1170547948.

The spelling of 5178768071 in words is "five billion, one hundred seventy-eight million, seven hundred sixty-eight thousand, seventy-one".