6438222475 has 12 divisors (see below), whose sum is σ = 7984674216. Its totient is φ = 5149753280.

The previous prime is 6438222463. The next prime is 6438222487. The reversal of 6438222475 is 5742228346.

It is an interprime number because it is at equal distance from previous prime (6438222463) and next prime (6438222487).

It is not a de Polignac number, because 6438222475 - 2¹⁵ = 6438189707 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175044 + ... + 208606.

It is an arithmetic number, because the mean of its divisors is an integer number (665389518).

Almost surely, 2^6438222475 is an apocalyptic number.

6438222475 is a deficient number, since it is larger than the sum of its proper divisors (1546451741).

6438222475 is a wasteful number, since it uses less digits than its factorization.

6438222475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41246 (or 41241 counting only the distinct ones).

The product of its digits is 645120, while the sum is 43.

The square root of 6438222475 is about 80238.5348507810. The cubic root of 6438222475 is about 1860.3243041681.

The spelling of 6438222475 in words is "six billion, four hundred thirty-eight million, two hundred twenty-two thousand, four hundred seventy-five".