847112638557 has 16 divisors (see below), whose sum is σ = 1166929822208. Its totient is φ = 546050211840.

The previous prime is 847112638507. The next prime is 847112638577. The reversal of 847112638557 is 755836211748.

847112638557 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 847112638557 - 2²⁴ = 847095861341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 847112638497 and 847112638506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847112638507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3842788 + ... + 4057245.

It is an arithmetic number, because the mean of its divisors is an integer number (72933113888).

Almost surely, 2^847112638557 is an apocalyptic number.

It is an amenable number.

847112638557 is a deficient number, since it is larger than the sum of its proper divisors (319817183651).

847112638557 is a wasteful number, since it uses less digits than its factorization.

847112638557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7901220.

The product of its digits is 11289600, while the sum is 57.

The spelling of 847112638557 in words is "eight hundred forty-seven billion, one hundred twelve million, six hundred thirty-eight thousand, five hundred fifty-seven".