2646081726449 has 8 divisors (see below), whose sum is σ = 3024293383488. Its totient is φ = 2267920064880.

The previous prime is 2646081726443. The next prime is 2646081726467. The reversal of 2646081726449 is 9446271806462.

2646081726449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2646081726449 - 2³⁶ = 2577362249713 is a prime.

It is a super-2 number, since 2×2646081726449² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2646081726443) 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, 12385382 + ... + 12597215.

It is an arithmetic number, because the mean of its divisors is an integer number (378036672936).

Almost surely, 2^{2646081726449} is an apocalyptic number.

It is an amenable number.

2646081726449 is a deficient number, since it is larger than the sum of its proper divisors (378211657039).

2646081726449 is a wasteful number, since it uses less digits than its factorization.

2646081726449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24997735.

The product of its (nonzero) digits is 27869184, while the sum is 59.

The spelling of 2646081726449 in words is "two trillion, six hundred forty-six billion, eighty-one million, seven hundred twenty-six thousand, four hundred forty-nine".