6421001246 has 48 divisors (see below), whose sum is σ = 11192428800. Its totient is φ = 2752984080.

The previous prime is 6421001243. The next prime is 6421001261.

6421001246 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6421001246² = 82458514002267105032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6421001243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1096001 + ... + 1101843.

It is an arithmetic number, because the mean of its divisors is an integer number (233175600).

Almost surely, 2^6421001246 is an apocalyptic number.

6421001246 is a deficient number, since it is larger than the sum of its proper divisors (4771427554).

6421001246 is a wasteful number, since it uses less digits than its factorization.

6421001246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125 (or 6114 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 6421001246 is about 80131.1502850171. The cubic root of 6421001246 is about 1858.6641317521.

It can be divided in two parts, 642100 and 1246, that added together give a palindrome (643346).

The spelling of 6421001246 in words is "six billion, four hundred twenty-one million, one thousand, two hundred forty-six".