6421331246 has 16 divisors (see below), whose sum is σ = 10640643840. Its totient is φ = 2881839480.

The previous prime is 6421331233. The next prime is 6421331251.

6421331246 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1845596 + ... + 1849071.

It is an arithmetic number, because the mean of its divisors is an integer number (665040240).

Almost surely, 2^6421331246 is an apocalyptic number.

6421331246 is a deficient number, since it is larger than the sum of its proper divisors (4219312594).

6421331246 is a wasteful number, since it uses less digits than its factorization.

6421331246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694759.

The product of its digits is 20736, while the sum is 32.

The square root of 6421331246 is about 80133.2093828770. The cubic root of 6421331246 is about 1858.6959725109.

It can be divided in two parts, 64213 and 31246, that added together give a palindrome (95459).

The spelling of 6421331246 in words is "six billion, four hundred twenty-one million, three hundred thirty-one thousand, two hundred forty-six".