2728170031051 has 4 divisors (see below), whose sum is σ = 2734062407392. Its totient is φ = 2722277654712.

The previous prime is 2728170031043. The next prime is 2728170031129. The reversal of 2728170031051 is 1501300718272.

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 2728170031051 - 2³ = 2728170031043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2728170031051.

It is not an unprimeable number, because it can be changed into a prime (2728170032051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2946187476 + ... + 2946188401.

It is an arithmetic number, because the mean of its divisors is an integer number (683515601848).

Almost surely, 2^{2728170031051} is an apocalyptic number.

2728170031051 is a deficient number, since it is larger than the sum of its proper divisors (5892376341).

2728170031051 is an equidigital number, since it uses as much as digits as its factorization.

2728170031051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5892376340.

The product of its (nonzero) digits is 23520, while the sum is 37.

The spelling of 2728170031051 in words is "two trillion, seven hundred twenty-eight billion, one hundred seventy million, thirty-one thousand, fifty-one".