28348715327 has 4 divisors (see below), whose sum is σ = 28355967696. Its totient is φ = 28341462960.

The previous prime is 28348715323. The next prime is 28348715341. The reversal of 28348715327 is 72351784382.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28348715327 - 2² = 28348715323 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 (28348715323) 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, 3620318 + ... + 3628139.

It is an arithmetic number, because the mean of its divisors is an integer number (7088991924).

Almost surely, 2^28348715327 is an apocalyptic number.

28348715327 is a deficient number, since it is larger than the sum of its proper divisors (7252369).

28348715327 is an equidigital number, since it uses as much as digits as its factorization.

28348715327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7252368.

The product of its digits is 2257920, while the sum is 50.

The spelling of 28348715327 in words is "twenty-eight billion, three hundred forty-eight million, seven hundred fifteen thousand, three hundred twenty-seven".