12838825116556 has 24 divisors (see below), whose sum is σ = 23013842632704. Its totient is φ = 6263745252240.

The previous prime is 12838825116539. The next prime is 12838825116647. The reversal of 12838825116556 is 65561152883821.

It is a super-2 number, since 2×12838825116556² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12838825116494 and 12838825116503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37798540 + ... + 38136691.

It is an arithmetic number, because the mean of its divisors is an integer number (958910109696).

Almost surely, 2^{12838825116556} is an apocalyptic number.

It is an amenable number.

12838825116556 is a deficient number, since it is larger than the sum of its proper divisors (10175017516148).

12838825116556 is a wasteful number, since it uses less digits than its factorization.

12838825116556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75936261 (or 75936259 counting only the distinct ones).

The product of its digits is 27648000, while the sum is 61.

The spelling of 12838825116556 in words is "twelve trillion, eight hundred thirty-eight billion, eight hundred twenty-five million, one hundred sixteen thousand, five hundred fifty-six".