6426221351 has 8 divisors (see below), whose sum is σ = 7125349008. Its totient is φ = 5746248000.

The previous prime is 6426221341. The next prime is 6426221377. The reversal of 6426221351 is 1531226246.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6426221351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6426221341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4787870 + ... + 4789211.

It is an arithmetic number, because the mean of its divisors is an integer number (890668626).

Almost surely, 2^6426221351 is an apocalyptic number.

6426221351 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

6426221351 is a deficient number, since it is larger than the sum of its proper divisors (699127657).

6426221351 is a wasteful number, since it uses less digits than its factorization.

6426221351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9577153.

The product of its digits is 17280, while the sum is 32.

The square root of 6426221351 is about 80163.7159255982. The cubic root of 6426221351 is about 1859.1676769922.

Adding to 6426221351 its reverse (1531226246), we get a palindrome (7957447597).

The spelling of 6426221351 in words is "six billion, four hundred twenty-six million, two hundred twenty-one thousand, three hundred fifty-one".