2728763209766 has 16 divisors (see below), whose sum is σ = 4526416684368. Its totient is φ = 1223355859200.

The previous prime is 2728763209727. The next prime is 2728763209807. The reversal of 2728763209766 is 6679023678272.

It is a super-2 number, since 2×2728763209766² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849551075 + ... + 849554286.

It is an arithmetic number, because the mean of its divisors is an integer number (282901042773).

Almost surely, 2^{2728763209766} is an apocalyptic number.

2728763209766 is a deficient number, since it is larger than the sum of its proper divisors (1797653474602).

2728763209766 is a wasteful number, since it uses less digits than its factorization.

2728763209766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699105447.

The product of its (nonzero) digits is 128024064, while the sum is 65.

The spelling of 2728763209766 in words is "two trillion, seven hundred twenty-eight billion, seven hundred sixty-three million, two hundred nine thousand, seven hundred sixty-six".