7938225199 has 4 divisors (see below), whose sum is σ = 8152771864. Its totient is φ = 7723678536.

The previous prime is 7938225133. The next prime is 7938225257. The reversal of 7938225199 is 9915228397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9915228397 = 157 ⋅63154321.

It is a cyclic number.

It is not a de Polignac number, because 7938225199 - 2⁹ = 7938224687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7938225899) by changing a digit.

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, 107273277 + ... + 107273350.

It is an arithmetic number, because the mean of its divisors is an integer number (2038192966).

Almost surely, 2^7938225199 is an apocalyptic number.

7938225199 is a deficient number, since it is larger than the sum of its proper divisors (214546665).

7938225199 is a wasteful number, since it uses less digits than its factorization.

7938225199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214546664.

The product of its digits is 2449440, while the sum is 55.

The square root of 7938225199 is about 89096.7182280021. The cubic root of 7938225199 is about 1994.8387923415.

The spelling of 7938225199 in words is "seven billion, nine hundred thirty-eight million, two hundred twenty-five thousand, one hundred ninety-nine".