28654544923 has 8 divisors (see below), whose sum is σ = 29546950608. Its totient is φ = 27775167264.

The previous prime is 28654544909. The next prime is 28654544959. The reversal of 28654544923 is 32944545682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28654544923 - 2²¹ = 28652447771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28654544983) 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 7 ways as a sum of consecutive naturals, for example, 3252540 + ... + 3261337.

It is an arithmetic number, because the mean of its divisors is an integer number (3693368826).

Almost surely, 2^28654544923 is an apocalyptic number.

28654544923 is a deficient number, since it is larger than the sum of its proper divisors (892405685).

28654544923 is an equidigital number, since it uses as much as digits as its factorization.

28654544923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6514013.

The product of its digits is 8294400, while the sum is 52.

The spelling of 28654544923 in words is "twenty-eight billion, six hundred fifty-four million, five hundred forty-four thousand, nine hundred twenty-three".