5128848521 has 4 divisors (see below), whose sum is σ = 5248124112. Its totient is φ = 5009572932.

The previous prime is 5128848511. The next prime is 5128848523. The reversal of 5128848521 is 1258488215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5128848521 - 2³⁰ = 4055106697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5128848523) 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, 59637731 + ... + 59637816.

It is an arithmetic number, because the mean of its divisors is an integer number (1312031028).

Almost surely, 2^5128848521 is an apocalyptic number.

It is an amenable number.

5128848521 is a deficient number, since it is larger than the sum of its proper divisors (119275591).

5128848521 is a wasteful number, since it uses less digits than its factorization.

5128848521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119275590.

The product of its digits is 204800, while the sum is 44.

The square root of 5128848521 is about 71615.9795087661. The cubic root of 5128848521 is about 1724.5400743733.

The spelling of 5128848521 in words is "five billion, one hundred twenty-eight million, eight hundred forty-eight thousand, five hundred twenty-one".