7845857273 has 2 divisors, whose sum is σ = 7845857274. Its totient is φ = 7845857272.

The previous prime is 7845857269. The next prime is 7845857297. The reversal of 7845857273 is 3727585487.

7845857273 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7836321529 + 9535744 = 88523^2 + 3088^2 .

It is a cyclic number.

It is not a de Polignac number, because 7845857273 - 2² = 7845857269 is a prime.

It is not a weakly prime, because it can be changed into another prime (7845856273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3922928636 + 3922928637.

It is an arithmetic number, because the mean of its divisors is an integer number (3922928637).

Almost surely, 2^7845857273 is an apocalyptic number.

It is an amenable number.

7845857273 is a deficient number, since it is larger than the sum of its proper divisors (1).

7845857273 is an equidigital number, since it uses as much as digits as its factorization.

7845857273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13171200, while the sum is 56.

The square root of 7845857273 is about 88576.8438871018. The cubic root of 7845857273 is about 1987.0713782034.

The spelling of 7845857273 in words is "seven billion, eight hundred forty-five million, eight hundred fifty-seven thousand, two hundred seventy-three".