28831211013 has 16 divisors (see below), whose sum is σ = 44403149376. Its totient is φ = 16445610240.

The previous prime is 28831210949. The next prime is 28831211023. The reversal of 28831211013 is 31011213882.

It is not a de Polignac number, because 28831211013 - 2⁶ = 28831210949 is a prime.

It is a super-2 number, since 2×28831211013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28831211023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25695706 + ... + 25696827.

It is an arithmetic number, because the mean of its divisors is an integer number (2775196836).

Almost surely, 2^28831211013 is an apocalyptic number.

It is an amenable number.

28831211013 is a deficient number, since it is larger than the sum of its proper divisors (15571938363).

28831211013 is a wasteful number, since it uses less digits than its factorization.

28831211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51392564.

The product of its (nonzero) digits is 2304, while the sum is 30.

Adding to 28831211013 its reverse (31011213882), we get a palindrome (59842424895).

The spelling of 28831211013 in words is "twenty-eight billion, eight hundred thirty-one million, two hundred eleven thousand, thirteen".