28110748723 has 4 divisors (see below), whose sum is σ = 28117216800. Its totient is φ = 28104280648.

The previous prime is 28110748711. The next prime is 28110748759. The reversal of 28110748723 is 32784701182.

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 28110748723 - 2²⁹ = 27573877811 is a prime.

It is a super-2 number, since 2×28110748723² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28110748723.

It is not an unprimeable number, because it can be changed into a prime (28110748763) 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, 3227515 + ... + 3236212.

It is an arithmetic number, because the mean of its divisors is an integer number (7029304200).

Almost surely, 2^28110748723 is an apocalyptic number.

28110748723 is a deficient number, since it is larger than the sum of its proper divisors (6468077).

28110748723 is an equidigital number, since it uses as much as digits as its factorization.

28110748723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6468076.

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 28110748723 in words is "twenty-eight billion, one hundred ten million, seven hundred forty-eight thousand, seven hundred twenty-three".