847847268845 has 8 divisors (see below), whose sum is σ = 1023297745176. Its totient is φ = 674357133376.

The previous prime is 847847268841. The next prime is 847847268847. The reversal of 847847268845 is 548862748748.

It can be written as a sum of positive squares in 4 ways, for example, as 240442141801 + 607405127044 = 490349^2 + 779362^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 847847268845 - 2² = 847847268841 is a prime.

It is a super-3 number, since 3×847847268845³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847847268841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490084262 + ... + 490085991.

It is an arithmetic number, because the mean of its divisors is an integer number (127912218147).

Almost surely, 2^847847268845 is an apocalyptic number.

It is an amenable number.

847847268845 is a deficient number, since it is larger than the sum of its proper divisors (175450476331).

847847268845 is a wasteful number, since it uses less digits than its factorization.

847847268845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980170431.

The product of its digits is 770703360, while the sum is 71.

The spelling of 847847268845 in words is "eight hundred forty-seven billion, eight hundred forty-seven million, two hundred sixty-eight thousand, eight hundred forty-five".