12839824845 has 24 divisors (see below), whose sum is σ = 23427050400. Its totient is φ = 6487490016.

The previous prime is 12839824843. The next prime is 12839824847. The reversal of 12839824845 is 54842893821.

12839824845 is a `hidden beast` number, since 1 + 2 + 8 + 398 + 248 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (12839824843) and next prime (12839824847).

It is not a de Polignac number, because 12839824845 - 2¹ = 12839824843 is a prime.

It is a super-2 number, since 2×12839824845² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12839824791 and 12839824800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12839824843) 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 23 ways as a sum of consecutive naturals, for example, 7507815 + ... + 7509524.

It is an arithmetic number, because the mean of its divisors is an integer number (976127100).

Almost surely, 2^12839824845 is an apocalyptic number.

12839824845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12839824845 is a deficient number, since it is larger than the sum of its proper divisors (10587225555).

12839824845 is a wasteful number, since it uses less digits than its factorization.

12839824845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15017369 (or 15017366 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The spelling of 12839824845 in words is "twelve billion, eight hundred thirty-nine million, eight hundred twenty-four thousand, eight hundred forty-five".