8688140213 has 2 divisors, whose sum is σ = 8688140214. Its totient is φ = 8688140212.

The previous prime is 8688140191. The next prime is 8688140273. The reversal of 8688140213 is 3120418868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7952537329 + 735602884 = 89177^2 + 27122^2 .

It is a cyclic number.

It is not a de Polignac number, because 8688140213 - 2²⁸ = 8419704757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8688140273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4344070106 + 4344070107.

It is an arithmetic number, because the mean of its divisors is an integer number (4344070107).

Almost surely, 2^8688140213 is an apocalyptic number.

It is an amenable number.

8688140213 is a deficient number, since it is larger than the sum of its proper divisors (1).

8688140213 is an equidigital number, since it uses as much as digits as its factorization.

8688140213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 8688140213 is about 93210.1937182838. The cubic root of 8688140213 is about 2055.7751263193.

The spelling of 8688140213 in words is "eight billion, six hundred eighty-eight million, one hundred forty thousand, two hundred thirteen".