28287337103 has 4 divisors (see below), whose sum is σ = 28392494760. Its totient is φ = 28182179448.

The previous prime is 28287337079. The next prime is 28287337181. The reversal of 28287337103 is 30173378282.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30173378282 = 2 ⋅15086689141.

It is a cyclic number.

It is not a de Polignac number, because 28287337103 - 2¹⁰ = 28287336079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52578425 + ... + 52578962.

It is an arithmetic number, because the mean of its divisors is an integer number (7098123690).

Almost surely, 2^28287337103 is an apocalyptic number.

28287337103 is a deficient number, since it is larger than the sum of its proper divisors (105157657).

28287337103 is a wasteful number, since it uses less digits than its factorization.

28287337103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105157656.

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 28287337103 in words is "twenty-eight billion, two hundred eighty-seven million, three hundred thirty-seven thousand, one hundred three".