7938715213 has 32 divisors (see below), whose sum is σ = 9744844032. Its totient is φ = 6363878400.

The previous prime is 7938715189. The next prime is 7938715219. The reversal of 7938715213 is 3125178397.

It is a de Polignac number, because none of the positive numbers 2^k-7938715213 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7938715219) 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 31 ways as a sum of consecutive naturals, for example, 4264903 + ... + 4266763.

It is an arithmetic number, because the mean of its divisors is an integer number (304526376).

Almost surely, 2^7938715213 is an apocalyptic number.

It is an amenable number.

7938715213 is a deficient number, since it is larger than the sum of its proper divisors (1806128819).

7938715213 is a wasteful number, since it uses less digits than its factorization.

7938715213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205.

The product of its digits is 317520, while the sum is 46.

The square root of 7938715213 is about 89099.4680848320. The cubic root of 7938715213 is about 1994.8798375709.

The spelling of 7938715213 in words is "seven billion, nine hundred thirty-eight million, seven hundred fifteen thousand, two hundred thirteen".