857930085713 has 2 divisors, whose sum is σ = 857930085714. Its totient is φ = 857930085712.

The previous prime is 857930085697. The next prime is 857930085787. The reversal of 857930085713 is 317580039758.

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., 773119249984 + 84810835729 = 879272^2 + 291223^2 .

It is a cyclic number.

It is not a de Polignac number, because 857930085713 - 2⁴ = 857930085697 is a prime.

It is not a weakly prime, because it can be changed into another prime (857930085113) 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, 428965042856 + 428965042857.

It is an arithmetic number, because the mean of its divisors is an integer number (428965042857).

Almost surely, 2^857930085713 is an apocalyptic number.

It is an amenable number.

857930085713 is a deficient number, since it is larger than the sum of its proper divisors (1).

857930085713 is an equidigital number, since it uses as much as digits as its factorization.

857930085713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 857930085713 in words is "eight hundred fifty-seven billion, nine hundred thirty million, eighty-five thousand, seven hundred thirteen".