9834839422425 has 54 divisors (see below), whose sum is σ = 18651851540478. Its totient is φ = 4936606352640.

The previous prime is 9834839422409. The next prime is 9834839422427. The reversal of 9834839422425 is 5242249384389.

9834839422425 is a `hidden beast` number, since 9 + 8 + 3 + 483 + 94 + 22 + 42 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1481011113024 + 8353828309401 = 1216968^2 + 2890299^2 .

It is not a de Polignac number, because 9834839422425 - 2⁴ = 9834839422409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9834839422427) 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 in 53 ways as a sum of consecutive naturals, for example, 193928922 + ... + 193979628.

It is an arithmetic number, because the mean of its divisors is an integer number (345404658157).

Almost surely, 2^{9834839422425} is an apocalyptic number.

It is an amenable number.

9834839422425 is a deficient number, since it is larger than the sum of its proper divisors (8817012118053).

9834839422425 is an frugal number, since it uses more digits than its factorization.

9834839422425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101447 (or 50732 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 63.

The spelling of 9834839422425 in words is "nine trillion, eight hundred thirty-four billion, eight hundred thirty-nine million, four hundred twenty-two thousand, four hundred twenty-five".