28314130109 has 4 divisors (see below), whose sum is σ = 28405172640. Its totient is φ = 28223087580.

The previous prime is 28314130081. The next prime is 28314130111. The reversal of 28314130109 is 90103141382.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90103141382 = 2 ⋅45051570691.

It is a cyclic number.

It is not a de Polignac number, because 28314130109 - 2³² = 24019162813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28314130609) 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, 45520799 + ... + 45521420.

It is an arithmetic number, because the mean of its divisors is an integer number (7101293160).

Almost surely, 2^28314130109 is an apocalyptic number.

It is an amenable number.

28314130109 is a deficient number, since it is larger than the sum of its proper divisors (91042531).

28314130109 is an equidigital number, since it uses as much as digits as its factorization.

28314130109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91042530.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 28314130109 in words is "twenty-eight billion, three hundred fourteen million, one hundred thirty thousand, one hundred nine".