8385127213 has 2 divisors, whose sum is σ = 8385127214. Its totient is φ = 8385127212.

The previous prime is 8385127211. The next prime is 8385127249. The reversal of 8385127213 is 3127215838.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7583274724 + 801852489 = 87082^2 + 28317^2 .

It is a cyclic number.

It is not a de Polignac number, because 8385127213 - 2¹ = 8385127211 is a prime.

Together with 8385127211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8385127211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4192563606 + 4192563607.

It is an arithmetic number, because the mean of its divisors is an integer number (4192563607).

Almost surely, 2^8385127213 is an apocalyptic number.

It is an amenable number.

8385127213 is a deficient number, since it is larger than the sum of its proper divisors (1).

8385127213 is an equidigital number, since it uses as much as digits as its factorization.

8385127213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 8385127213 is about 91570.3402472657. The cubic root of 8385127213 is about 2031.5922710105.

The spelling of 8385127213 in words is "eight billion, three hundred eighty-five million, one hundred twenty-seven thousand, two hundred thirteen".