857213068563 has 32 divisors (see below), whose sum is σ = 1302820147200. Its totient is φ = 556750037088.

The previous prime is 857213068549. The next prime is 857213068573. The reversal of 857213068563 is 365860312758.

857213068563 is a `hidden beast` number, since 8 + 5 + 7 + 2 + 13 + 0 + 68 + 563 = 666.

857213068563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 857213068563 - 2¹³ = 857213060371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (857213068573) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 497395 + ... + 1400652.

It is an arithmetic number, because the mean of its divisors is an integer number (40713129600).

Almost surely, 2^857213068563 is an apocalyptic number.

857213068563 is a deficient number, since it is larger than the sum of its proper divisors (445607078637).

857213068563 is a wasteful number, since it uses less digits than its factorization.

857213068563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898488 (or 1898482 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 857213068563 in words is "eight hundred fifty-seven billion, two hundred thirteen million, sixty-eight thousand, five hundred sixty-three".