2728887475989 has 32 divisors (see below), whose sum is σ = 3836860416000. Its totient is φ = 1720430712000.

The previous prime is 2728887475931. The next prime is 2728887476009. The reversal of 2728887475989 is 9895747888272.

It is not a de Polignac number, because 2728887475989 - 2⁹ = 2728887475477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728887475289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102680707 + ... + 102707279.

It is an arithmetic number, because the mean of its divisors is an integer number (119901888000).

Almost surely, 2^{2728887475989} is an apocalyptic number.

It is an amenable number.

2728887475989 is a deficient number, since it is larger than the sum of its proper divisors (1107972940011).

2728887475989 is a wasteful number, since it uses less digits than its factorization.

2728887475989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29745.

The product of its digits is 9103933440, while the sum is 84.

The spelling of 2728887475989 in words is "two trillion, seven hundred twenty-eight billion, eight hundred eighty-seven million, four hundred seventy-five thousand, nine hundred eighty-nine".