12860870601647 has 2 divisors, whose sum is σ = 12860870601648. Its totient is φ = 12860870601646.

The previous prime is 12860870601599. The next prime is 12860870601659. The reversal of 12860870601647 is 74610607806821.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12860870601647 - 2³⁸ = 12585992694703 is a prime.

It is a super-2 number, since 2×12860870601647² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12860870601592 and 12860870601601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12860870621647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6430435300823 + 6430435300824.

It is an arithmetic number, because the mean of its divisors is an integer number (6430435300824).

Almost surely, 2^{12860870601647} is an apocalyptic number.

12860870601647 is a deficient number, since it is larger than the sum of its proper divisors (1).

12860870601647 is an equidigital number, since it uses as much as digits as its factorization.

12860870601647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 12860870601647 in words is "twelve trillion, eight hundred sixty billion, eight hundred seventy million, six hundred one thousand, six hundred forty-seven".