2728302681 has 16 divisors (see below), whose sum is σ = 4148008704. Its totient is φ = 1580193024.

The previous prime is 2728302679. The next prime is 2728302713. The reversal of 2728302681 is 1862038272.

It is not a de Polignac number, because 2728302681 - 2¹ = 2728302679 is a prime.

It is a super-2 number, since 2×2728302681² = 14887271038303575522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2728302601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2056881 + ... + 2058206.

It is an arithmetic number, because the mean of its divisors is an integer number (259250544).

Almost surely, 2^2728302681 is an apocalyptic number.

It is an amenable number.

2728302681 is a deficient number, since it is larger than the sum of its proper divisors (1419706023).

2728302681 is a wasteful number, since it uses less digits than its factorization.

2728302681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115120.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 2728302681 is about 52233.1569120611. The cubic root of 2728302681 is about 1397.3252810929.

The spelling of 2728302681 in words is "two billion, seven hundred twenty-eight million, three hundred two thousand, six hundred eighty-one".