12720380682847 has 16 divisors (see below), whose sum is σ = 13731209699328. Its totient is φ = 11749394543040.

The previous prime is 12720380682809. The next prime is 12720380682853. The reversal of 12720380682847 is 74828608302721.

It is not a de Polignac number, because 12720380682847 - 2¹⁵ = 12720380650079 is a prime.

It is a super-2 number, since 2×12720380682847² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12720380682791 and 12720380682800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12720390682847) 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 15 ways as a sum of consecutive naturals, for example, 18936238 + ... + 19596475.

It is an arithmetic number, because the mean of its divisors is an integer number (858200606208).

Almost surely, 2^{12720380682847} is an apocalyptic number.

12720380682847 is a deficient number, since it is larger than the sum of its proper divisors (1010829016481).

12720380682847 is a wasteful number, since it uses less digits than its factorization.

12720380682847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38533230.

The product of its (nonzero) digits is 14450688, while the sum is 58.

The spelling of 12720380682847 in words is "twelve trillion, seven hundred twenty billion, three hundred eighty million, six hundred eighty-two thousand, eight hundred forty-seven".