28546395923 has 4 divisors (see below), whose sum is σ = 28890328488. Its totient is φ = 28202463360.

The previous prime is 28546395907. The next prime is 28546395953. The reversal of 28546395923 is 32959364582.

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 28546395923 - 2⁴ = 28546395907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28546395953) 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, 171966158 + ... + 171966323.

It is an arithmetic number, because the mean of its divisors is an integer number (7222582122).

Almost surely, 2^28546395923 is an apocalyptic number.

28546395923 is a deficient number, since it is larger than the sum of its proper divisors (343932565).

28546395923 is an equidigital number, since it uses as much as digits as its factorization.

28546395923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343932564.

The product of its digits is 13996800, while the sum is 56.

The spelling of 28546395923 in words is "twenty-eight billion, five hundred forty-six million, three hundred ninety-five thousand, nine hundred twenty-three".