12880047016721 has 8 divisors (see below), whose sum is σ = 13643542445544. Its totient is φ = 12117201099520.

The previous prime is 12880047016703. The next prime is 12880047016723. The reversal of 12880047016721 is 12761074008821.

12880047016721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5781211492225 + 7098835524496 = 2404415^2 + 2664364^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12880047016721 is a prime.

It is a super-2 number, since 2×12880047016721² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12880047016723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162337070 + ... + 162416391.

It is an arithmetic number, because the mean of its divisors is an integer number (1705442805693).

Almost surely, 2^{12880047016721} is an apocalyptic number.

It is an amenable number.

12880047016721 is a deficient number, since it is larger than the sum of its proper divisors (763495428823).

12880047016721 is a wasteful number, since it uses less digits than its factorization.

12880047016721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324755811.

The product of its (nonzero) digits is 301056, while the sum is 47.

The spelling of 12880047016721 in words is "twelve trillion, eight hundred eighty billion, forty-seven million, sixteen thousand, seven hundred twenty-one".