2664049906589 has 2 divisors, whose sum is σ = 2664049906590. Its totient is φ = 2664049906588.

The previous prime is 2664049906571. The next prime is 2664049906621. The reversal of 2664049906589 is 9856099404662.

2664049906589 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., 2631263561689 + 32786344900 = 1622117^2 + 181070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2664049906589 is a prime.

It is a super-2 number, since 2×2664049906589² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2664049906789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332024953294 + 1332024953295.

It is an arithmetic number, because the mean of its divisors is an integer number (1332024953295).

Almost surely, 2^{2664049906589} is an apocalyptic number.

It is an amenable number.

2664049906589 is a deficient number, since it is larger than the sum of its proper divisors (1).

2664049906589 is an equidigital number, since it uses as much as digits as its factorization.

2664049906589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201553920, while the sum is 68.

The spelling of 2664049906589 in words is "two trillion, six hundred sixty-four billion, forty-nine million, nine hundred six thousand, five hundred eighty-nine".