6838504521 has 4 divisors (see below), whose sum is σ = 9118006032. Its totient is φ = 4559003012.

The previous prime is 6838504493. The next prime is 6838504531. The reversal of 6838504521 is 1254058386.

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 6838504521 - 2⁹ = 6838504009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6838504531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1139750751 + ... + 1139750756.

It is an arithmetic number, because the mean of its divisors is an integer number (2279501508).

Almost surely, 2^6838504521 is an apocalyptic number.

It is an amenable number.

6838504521 is a deficient number, since it is larger than the sum of its proper divisors (2279501511).

6838504521 is a wasteful number, since it uses less digits than its factorization.

6838504521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279501510.

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 6838504521 is about 82695.2508974971. The cubic root of 6838504521 is about 1898.1056392209.

The spelling of 6838504521 in words is "six billion, eight hundred thirty-eight million, five hundred four thousand, five hundred twenty-one".