2728386782553 has 16 divisors (see below), whose sum is σ = 3699952920000. Its totient is φ = 1787912374080.

The previous prime is 2728386782543. The next prime is 2728386782657. The reversal of 2728386782553 is 3552876838272.

It is not a de Polignac number, because 2728386782553 - 2⁵ = 2728386782521 is a prime.

It is a super-2 number, since 2×2728386782553² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2728386782543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4698738 + ... + 5247371.

It is an arithmetic number, because the mean of its divisors is an integer number (231247057500).

Almost surely, 2^{2728386782553} is an apocalyptic number.

It is an amenable number.

2728386782553 is a deficient number, since it is larger than the sum of its proper divisors (971566137447).

2728386782553 is a wasteful number, since it uses less digits than its factorization.

2728386782553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9947672.

The product of its digits is 270950400, while the sum is 66.

The spelling of 2728386782553 in words is "two trillion, seven hundred twenty-eight billion, three hundred eighty-six million, seven hundred eighty-two thousand, five hundred fifty-three".