28110736239 has 4 divisors (see below), whose sum is σ = 37480981656. Its totient is φ = 18740490824.

The previous prime is 28110736217. The next prime is 28110736243. The reversal of 28110736239 is 93263701182.

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 28110736239 - 2⁹ = 28110735727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28110736239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28110736259) 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, 4685122704 + ... + 4685122709.

It is an arithmetic number, because the mean of its divisors is an integer number (9370245414).

Almost surely, 2^28110736239 is an apocalyptic number.

28110736239 is a deficient number, since it is larger than the sum of its proper divisors (9370245417).

28110736239 is an equidigital number, since it uses as much as digits as its factorization.

28110736239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9370245416.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 28110736239 in words is "twenty-eight billion, one hundred ten million, seven hundred thirty-six thousand, two hundred thirty-nine".