7855916273 has 2 divisors, whose sum is σ = 7855916274. Its totient is φ = 7855916272.

The previous prime is 7855916267. The next prime is 7855916323. The reversal of 7855916273 is 3726195587.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7855808689 + 107584 = 88633^2 + 328^2 .

It is a cyclic number.

It is not a de Polignac number, because 7855916273 - 2⁶ = 7855916209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7855916203) 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 as a sum of consecutive naturals, namely, 3927958136 + 3927958137.

It is an arithmetic number, because the mean of its divisors is an integer number (3927958137).

Almost surely, 2^7855916273 is an apocalyptic number.

It is an amenable number.

7855916273 is a deficient number, since it is larger than the sum of its proper divisors (1).

7855916273 is an equidigital number, since it uses as much as digits as its factorization.

7855916273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 53.

The square root of 7855916273 is about 88633.6069050561. The cubic root of 7855916273 is about 1987.9202089659.

The spelling of 7855916273 in words is "seven billion, eight hundred fifty-five million, nine hundred sixteen thousand, two hundred seventy-three".