28738223259 has 8 divisors (see below), whose sum is σ = 38320335360. Its totient is φ = 19157463336.

The previous prime is 28738223251. The next prime is 28738223263. The reversal of 28738223259 is 95232283782.

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

It is not a de Polignac number, because 28738223259 - 2³ = 28738223251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28738223251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287367 + ... + 374240.

It is an arithmetic number, because the mean of its divisors is an integer number (4790041920).

Almost surely, 2^28738223259 is an apocalyptic number.

28738223259 is a deficient number, since it is larger than the sum of its proper divisors (9582112101).

28738223259 is a wasteful number, since it uses less digits than its factorization.

28738223259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676089.

The product of its digits is 2903040, while the sum is 51.

The spelling of 28738223259 in words is "twenty-eight billion, seven hundred thirty-eight million, two hundred twenty-three thousand, two hundred fifty-nine".