6422221478 has 8 divisors (see below), whose sum is σ = 10199998872. Its totient is φ = 3022221856.

The previous prime is 6422221409. The next prime is 6422221489. The reversal of 6422221478 is 8741222246.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 94444400 + ... + 94444467.

It is an arithmetic number, because the mean of its divisors is an integer number (1274999859).

Almost surely, 2^6422221478 is an apocalyptic number.

6422221478 is a deficient number, since it is larger than the sum of its proper divisors (3777777394).

6422221478 is a wasteful number, since it uses less digits than its factorization.

6422221478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188888886.

The product of its digits is 86016, while the sum is 38.

The square root of 6422221478 is about 80138.7638911407. The cubic root of 6422221478 is about 1858.7818630171.

The spelling of 6422221478 in words is "six billion, four hundred twenty-two million, two hundred twenty-one thousand, four hundred seventy-eight".