6421135522 has 8 divisors (see below), whose sum is σ = 9632178000. Its totient is φ = 3210409524.

The previous prime is 6421135489. The next prime is 6421135549. The reversal of 6421135522 is 2255311246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 19372 + ... + 114967.

It is an arithmetic number, because the mean of its divisors is an integer number (1204022250).

Almost surely, 2^6421135522 is an apocalyptic number.

6421135522 is a deficient number, since it is larger than the sum of its proper divisors (3211042478).

6421135522 is a wasteful number, since it uses less digits than its factorization.

6421135522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158240.

The product of its digits is 14400, while the sum is 31.

The square root of 6421135522 is about 80131.9881320812. The cubic root of 6421135522 is about 1858.6770877920.

Adding to 6421135522 its reverse (2255311246), we get a palindrome (8676446768).

The spelling of 6421135522 in words is "six billion, four hundred twenty-one million, one hundred thirty-five thousand, five hundred twenty-two".