5121178571 has 4 divisors (see below), whose sum is σ = 5133700200. Its totient is φ = 5108656944.

The previous prime is 5121178537. The next prime is 5121178577. The reversal of 5121178571 is 1758711215.

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-5121178571 is a prime.

It is a super-4 number, since 4×5121178571⁴ (a number of 40 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5121178577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6260201 + ... + 6261018.

It is an arithmetic number, because the mean of its divisors is an integer number (1283425050).

Almost surely, 2^5121178571 is an apocalyptic number.

5121178571 is a deficient number, since it is larger than the sum of its proper divisors (12521629).

5121178571 is a wasteful number, since it uses less digits than its factorization.

5121178571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12521628.

The product of its digits is 19600, while the sum is 38.

The square root of 5121178571 is about 71562.4103213412. The cubic root of 5121178571 is about 1723.6799894965.

Adding to 5121178571 its reverse (1758711215), we get a palindrome (6879889786).

The spelling of 5121178571 in words is "five billion, one hundred twenty-one million, one hundred seventy-eight thousand, five hundred seventy-one".