8438922279 has 32 divisors (see below), whose sum is σ = 12875136000. Its totient is φ = 5460504192.

The previous prime is 8438922277. The next prime is 8438922299. The reversal of 8438922279 is 9722298348.

It is a happy number.

It is not a de Polignac number, because 8438922279 - 2¹ = 8438922277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8438922277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92319 + ... + 159375.

It is an arithmetic number, because the mean of its divisors is an integer number (402348000).

Almost surely, 2^8438922279 is an apocalyptic number.

8438922279 is a deficient number, since it is larger than the sum of its proper divisors (4436213721).

8438922279 is a wasteful number, since it uses less digits than its factorization.

8438922279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67204 (or 67198 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 8438922279 is about 91863.6069344112. The cubic root of 8438922279 is about 2035.9275959208.

The spelling of 8438922279 in words is "eight billion, four hundred thirty-eight million, nine hundred twenty-two thousand, two hundred seventy-nine".