807857365873 has 2 divisors, whose sum is σ = 807857365874. Its totient is φ = 807857365872.

The previous prime is 807857365853. The next prime is 807857365901. The reversal of 807857365873 is 378563758708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 799572179344 + 8285186529 = 894188^2 + 91023^2 .

It is a cyclic number.

It is not a de Polignac number, because 807857365873 - 2¹⁷ = 807857234801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 807857365799 and 807857365808.

It is not a weakly prime, because it can be changed into another prime (807857365853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403928682936 + 403928682937.

It is an arithmetic number, because the mean of its divisors is an integer number (403928682937).

Almost surely, 2^807857365873 is an apocalyptic number.

It is an amenable number.

807857365873 is a deficient number, since it is larger than the sum of its proper divisors (1).

807857365873 is an equidigital number, since it uses as much as digits as its factorization.

807857365873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 237081600, while the sum is 67.

The spelling of 807857365873 in words is "eight hundred seven billion, eight hundred fifty-seven million, three hundred sixty-five thousand, eight hundred seventy-three".