6528048921 has 48 divisors (see below), whose sum is σ = 9714152448. Its totient is φ = 4223167200.

The previous prime is 6528048883. The next prime is 6528048931. The reversal of 6528048921 is 1298408256.

It is not a de Polignac number, because 6528048921 - 2²⁹ = 5991178009 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6528048931) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20990356 + ... + 20990666.

It is an arithmetic number, because the mean of its divisors is an integer number (202378176).

Almost surely, 2^6528048921 is an apocalyptic number.

It is an amenable number.

6528048921 is a deficient number, since it is larger than the sum of its proper divisors (3186103527).

6528048921 is a wasteful number, since it uses less digits than its factorization.

6528048921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 6528048921 is about 80796.3422501291. The cubic root of 6528048921 is about 1868.9361599373.

The spelling of 6528048921 in words is "six billion, five hundred twenty-eight million, forty-eight thousand, nine hundred twenty-one".