6538998356 has 24 divisors (see below), whose sum is σ = 12505452960. Its totient is φ = 2967055200.

The previous prime is 6538998317. The next prime is 6538998359.

6538998356 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6538998359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105011 + ... + 155258.

It is an arithmetic number, because the mean of its divisors is an integer number (521060540).

Almost surely, 2^6538998356 is an apocalyptic number.

It is an amenable number.

6538998356 is a deficient number, since it is larger than the sum of its proper divisors (5966454604).

6538998356 is a wasteful number, since it uses less digits than its factorization.

6538998356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260855 (or 260853 counting only the distinct ones).

The product of its digits is 41990400, while the sum is 62.

The square root of 6538998356 is about 80864.0733329703. The cubic root of 6538998356 is about 1869.9804926140.

The spelling of 6538998356 in words is "six billion, five hundred thirty-eight million, nine hundred ninety-eight thousand, three hundred fifty-six".