6378856422 has 32 divisors (see below), whose sum is σ = 13335982080. Its totient is φ = 2031644160.

The previous prime is 6378856397. The next prime is 6378856447. The reversal of 6378856422 is 2246588736.

It is an interprime number because it is at equal distance from previous prime (6378856397) and next prime (6378856447).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202363 + ... + 231750.

It is an arithmetic number, because the mean of its divisors is an integer number (416749440).

Almost surely, 2^6378856422 is an apocalyptic number.

6378856422 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

6378856422 is an abundant number, since it is smaller than the sum of its proper divisors (6957125658).

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

6378856422 is a wasteful number, since it uses less digits than its factorization.

6378856422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434228.

The product of its digits is 3870720, while the sum is 51.

The square root of 6378856422 is about 79867.7433135556. The cubic root of 6378856422 is about 1854.5886986819.

The spelling of 6378856422 in words is "six billion, three hundred seventy-eight million, eight hundred fifty-six thousand, four hundred twenty-two".