8218152392 has 16 divisors (see below), whose sum is σ = 15445643100. Its totient is φ = 4099314240.

The previous prime is 8218152391. The next prime is 8218152401. The reversal of 8218152392 is 2932518128.

It can be written as a sum of positive squares in 2 ways, for example, as 8213071876 + 5080516 = 90626^2 + 2254^2 .

It is not an unprimeable number, because it can be changed into a prime (8218152391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1216667 + ... + 1223402.

Almost surely, 2^8218152392 is an apocalyptic number.

It is an amenable number.

8218152392 is a deficient number, since it is larger than the sum of its proper divisors (7227490708).

8218152392 is a wasteful number, since it uses less digits than its factorization.

8218152392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440496 (or 2440492 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 8218152392 is about 90654.0257903641. The cubic root of 8218152392 is about 2018.0165800769.

The spelling of 8218152392 in words is "eight billion, two hundred eighteen million, one hundred fifty-two thousand, three hundred ninety-two".