28612301113 has 4 divisors (see below), whose sum is σ = 31213419408. Its totient is φ = 26011182820.

The previous prime is 28612301111. The next prime is 28612301119. The reversal of 28612301113 is 31110321682.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28612301113 - 2¹ = 28612301111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28612301111) 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, 1300559131 + ... + 1300559152.

It is an arithmetic number, because the mean of its divisors is an integer number (7803354852).

Almost surely, 2^28612301113 is an apocalyptic number.

It is an amenable number.

28612301113 is a deficient number, since it is larger than the sum of its proper divisors (2601118295).

28612301113 is a wasteful number, since it uses less digits than its factorization.

28612301113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601118294.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 28612301113 its reverse (31110321682), we get a palindrome (59722622795).

The spelling of 28612301113 in words is "twenty-eight billion, six hundred twelve million, three hundred one thousand, one hundred thirteen".