28122728295 has 64 divisors (see below), whose sum is σ = 48614805504. Its totient is φ = 13829437440.

The previous prime is 28122728243. The next prime is 28122728297. The reversal of 28122728295 is 59282722182.

It is not a de Polignac number, because 28122728295 - 2⁹ = 28122727783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28122728297) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13121994 + ... + 13124136.

It is an arithmetic number, because the mean of its divisors is an integer number (759606336).

Almost surely, 2^28122728295 is an apocalyptic number.

28122728295 is a deficient number, since it is larger than the sum of its proper divisors (20492077209).

28122728295 is a wasteful number, since it uses less digits than its factorization.

28122728295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192.

The product of its digits is 645120, while the sum is 48.

The spelling of 28122728295 in words is "twenty-eight billion, one hundred twenty-two million, seven hundred twenty-eight thousand, two hundred ninety-five".