2660712794989 has 2 divisors, whose sum is σ = 2660712794990. Its totient is φ = 2660712794988.

The previous prime is 2660712794983. The next prime is 2660712795017. The reversal of 2660712794989 is 9894972170662.

2660712794989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2239587075625 + 421125719364 = 1496525^2 + 648942^2 .

It is a cyclic number.

It is not a de Polignac number, because 2660712794989 - 2³ = 2660712794981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2660712794981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330356397494 + 1330356397495.

It is an arithmetic number, because the mean of its divisors is an integer number (1330356397495).

Almost surely, 2^{2660712794989} is an apocalyptic number.

It is an amenable number.

2660712794989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660712794989 is an equidigital number, since it uses as much as digits as its factorization.

2660712794989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164602368, while the sum is 70.

The spelling of 2660712794989 in words is "two trillion, six hundred sixty billion, seven hundred twelve million, seven hundred ninety-four thousand, nine hundred eighty-nine".