894557857473 has 64 divisors (see below), whose sum is σ = 1548748408320. Its totient is φ = 499718958336.

The previous prime is 894557857381. The next prime is 894557857483. The reversal of 894557857473 is 374758755498.

894557857473 is a `hidden beast` number, since 8 + 9 + 4 + 5 + 578 + 5 + 7 + 47 + 3 = 666.

It is not a de Polignac number, because 894557857473 - 2¹⁰ = 894557856449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (894557857483) 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 in 63 ways as a sum of consecutive naturals, for example, 2613511 + ... + 2935907.

It is an arithmetic number, because the mean of its divisors is an integer number (24199193880).

Almost surely, 2^894557857473 is an apocalyptic number.

It is an amenable number.

894557857473 is a deficient number, since it is larger than the sum of its proper divisors (654190550847).

894557857473 is a wasteful number, since it uses less digits than its factorization.

894557857473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322743 (or 322737 counting only the distinct ones).

The product of its digits is 1185408000, while the sum is 72.

The spelling of 894557857473 in words is "eight hundred ninety-four billion, five hundred fifty-seven million, eight hundred fifty-seven thousand, four hundred seventy-three".