28250298123 has 16 divisors (see below), whose sum is σ = 38160656160. Its totient is φ = 18588082176.

The previous prime is 28250298107. The next prime is 28250298157. The reversal of 28250298123 is 32189205282.

It is not a de Polignac number, because 28250298123 - 2⁴ = 28250298107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28250298163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84040 + ... + 252117.

It is an arithmetic number, because the mean of its divisors is an integer number (2385041010).

Almost surely, 2^28250298123 is an apocalyptic number.

28250298123 is a deficient number, since it is larger than the sum of its proper divisors (9910358037).

28250298123 is a wasteful number, since it uses less digits than its factorization.

28250298123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336526.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 28250298123 in words is "twenty-eight billion, two hundred fifty million, two hundred ninety-eight thousand, one hundred twenty-three".