6368422210638 has 32 divisors (see below), whose sum is σ = 13576581136800. Its totient is φ = 1984527406080.

The previous prime is 6368422210637. The next prime is 6368422210681. The reversal of 6368422210638 is 8360122248636.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6368422210637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209499943 + ... + 209530338.

It is an arithmetic number, because the mean of its divisors is an integer number (424268160525).

Almost surely, 2^{6368422210638} is an apocalyptic number.

6368422210638 is an abundant number, since it is smaller than the sum of its proper divisors (7208158926162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6368422210638 is a wasteful number, since it uses less digits than its factorization.

6368422210638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419030452.

The product of its (nonzero) digits is 3981312, while the sum is 51.

The spelling of 6368422210638 in words is "six trillion, three hundred sixty-eight billion, four hundred twenty-two million, two hundred ten thousand, six hundred thirty-eight".