7895138218 has 64 divisors (see below), whose sum is σ = 13931274240. Its totient is φ = 3321172800.

The previous prime is 7895138213. The next prime is 7895138219. The reversal of 7895138218 is 8128315987.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7895138213) 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, 1486155 + ... + 1491457.

It is an arithmetic number, because the mean of its divisors is an integer number (217676160).

Almost surely, 2^7895138218 is an apocalyptic number.

7895138218 is a deficient number, since it is larger than the sum of its proper divisors (6036136022).

7895138218 is a wasteful number, since it uses less digits than its factorization.

7895138218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5443.

The product of its digits is 967680, while the sum is 52.

The square root of 7895138218 is about 88854.5903034840. The cubic root of 7895138218 is about 1991.2230571479.

The spelling of 7895138218 in words is "seven billion, eight hundred ninety-five million, one hundred thirty-eight thousand, two hundred eighteen".