6421336353463 has 8 divisors (see below), whose sum is σ = 6459857580960. Its totient is φ = 6382815960960.

The previous prime is 6421336353347. The next prime is 6421336353469. The reversal of 6421336353463 is 3643536331246.

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-6421336353463 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 (6421336353469) 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, 22792603 + ... + 23072611.

It is an arithmetic number, because the mean of its divisors is an integer number (807482197620).

Almost surely, 2^{6421336353463} is an apocalyptic number.

6421336353463 is a deficient number, since it is larger than the sum of its proper divisors (38521227497).

6421336353463 is a wasteful number, since it uses less digits than its factorization.

6421336353463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417497.

The product of its digits is 8398080, while the sum is 49.

The spelling of 6421336353463 in words is "six trillion, four hundred twenty-one billion, three hundred thirty-six million, three hundred fifty-three thousand, four hundred sixty-three".