2664843754729 has 6 divisors (see below), whose sum is σ = 2885600042286. Its totient is φ = 2459855773440.

The previous prime is 2664843754717. The next prime is 2664843754747. The reversal of 2664843754729 is 9274573484662.

2664843754729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 108618362329 + 2556225392400 = 329573^2 + 1598820^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2664843754729 is a prime.

It is a super-3 number, since 3×2664843754729³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2664843754789) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7884152952 + ... + 7884153289.

It is an arithmetic number, because the mean of its divisors is an integer number (480933340381).

Almost surely, 2^{2664843754729} is an apocalyptic number.

It is an amenable number.

2664843754729 is a deficient number, since it is larger than the sum of its proper divisors (220756287557).

2664843754729 is a wasteful number, since it uses less digits than its factorization.

2664843754729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15768306267 (or 15768306254 counting only the distinct ones).

The product of its digits is 487710720, while the sum is 67.

The spelling of 2664843754729 in words is "two trillion, six hundred sixty-four billion, eight hundred forty-three million, seven hundred fifty-four thousand, seven hundred twenty-nine".