857547162586207 has 2 divisors, whose sum is σ = 857547162586208. Its totient is φ = 857547162586206.

The previous prime is 857547162586157. The next prime is 857547162586229. The reversal of 857547162586207 is 702685261745758.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-857547162586207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 857547162586207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (857547462586207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428773581293103 + 428773581293104.

It is an arithmetic number, because the mean of its divisors is an integer number (428773581293104).

Almost surely, 2^{857547162586207} is an apocalyptic number.

857547162586207 is a deficient number, since it is larger than the sum of its proper divisors (1).

857547162586207 is an equidigital number, since it uses as much as digits as its factorization.

857547162586207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1580544000, while the sum is 73.

The spelling of 857547162586207 in words is "eight hundred fifty-seven trillion, five hundred forty-seven billion, one hundred sixty-two million, five hundred eighty-six thousand, two hundred seven".