12607044409621 has 2 divisors, whose sum is σ = 12607044409622. Its totient is φ = 12607044409620.

The previous prime is 12607044409469. The next prime is 12607044409637. The reversal of 12607044409621 is 12690444070621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11439378306225 + 1167666103396 = 3382215^2 + 1080586^2 .

It is a cyclic number.

It is not a de Polignac number, because 12607044409621 - 2¹⁹ = 12607043885333 is a prime.

It is a super-2 number, since 2×12607044409621² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12607044449621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6303522204810 + 6303522204811.

It is an arithmetic number, because the mean of its divisors is an integer number (6303522204811).

Almost surely, 2^{12607044409621} is an apocalyptic number.

It is an amenable number.

12607044409621 is a deficient number, since it is larger than the sum of its proper divisors (1).

12607044409621 is an equidigital number, since it uses as much as digits as its factorization.

12607044409621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 12607044409621 in words is "twelve trillion, six hundred seven billion, forty-four million, four hundred nine thousand, six hundred twenty-one".