28749425411 has 16 divisors (see below), whose sum is σ = 33047984640. Its totient is φ = 24498996480.

The previous prime is 28749425401. The next prime is 28749425443. The reversal of 28749425411 is 11452494782.

It is not a de Polignac number, because 28749425411 - 2¹⁴ = 28749409027 is a prime.

It is a super-2 number, since 2×28749425411² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28749425401) 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 15 ways as a sum of consecutive naturals, for example, 1418195 + ... + 1438323.

It is an arithmetic number, because the mean of its divisors is an integer number (2065499040).

Almost surely, 2^28749425411 is an apocalyptic number.

28749425411 is a deficient number, since it is larger than the sum of its proper divisors (4298559229).

28749425411 is a wasteful number, since it uses less digits than its factorization.

28749425411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21314.

The product of its digits is 645120, while the sum is 47.

The spelling of 28749425411 in words is "twenty-eight billion, seven hundred forty-nine million, four hundred twenty-five thousand, four hundred eleven".