2728164043 has 4 divisors (see below), whose sum is σ = 2976178968. Its totient is φ = 2480149120.

The previous prime is 2728164041. The next prime is 2728164107. The reversal of 2728164043 is 3404618272.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2728164043 - 2¹ = 2728164041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2728163993 and 2728164011.

It is not an unprimeable number, because it can be changed into a prime (2728164041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124007446 + ... + 124007467.

It is an arithmetic number, because the mean of its divisors is an integer number (744044742).

Almost surely, 2^2728164043 is an apocalyptic number.

2728164043 is a deficient number, since it is larger than the sum of its proper divisors (248014925).

2728164043 is a wasteful number, since it uses less digits than its factorization.

2728164043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248014924.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 2728164043 is about 52231.8297879751. The cubic root of 2728164043 is about 1397.3016124502.

The spelling of 2728164043 in words is "two billion, seven hundred twenty-eight million, one hundred sixty-four thousand, forty-three".