12841957556 has 24 divisors (see below), whose sum is σ = 23946974856. Its totient is φ = 6004776960.

The previous prime is 12841957553. The next prime is 12841957589. The reversal of 12841957556 is 65575914821.

It can be written as a sum of positive squares in 4 ways, for example, as 4721064100 + 8120893456 = 68710^2 + 90116^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12841957498 and 12841957507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12841957553) 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 7 ways as a sum of consecutive naturals, for example, 590765 + ... + 612116.

It is an arithmetic number, because the mean of its divisors is an integer number (997790619).

Almost surely, 2^12841957556 is an apocalyptic number.

It is an amenable number.

12841957556 is a deficient number, since it is larger than the sum of its proper divisors (11105017300).

12841957556 is a wasteful number, since it uses less digits than its factorization.

12841957556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203059 (or 1203057 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 53.

The spelling of 12841957556 in words is "twelve billion, eight hundred forty-one million, nine hundred fifty-seven thousand, five hundred fifty-six".