28772108259 has 8 divisors (see below), whose sum is σ = 38742641232. Its totient is φ = 18991490400.

The previous prime is 28772108257. The next prime is 28772108311. The reversal of 28772108259 is 95280127782.

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

It is not a de Polignac number, because 28772108259 - 2¹ = 28772108257 is a prime.

It is a super-2 number, since 2×28772108259² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (28772108257) 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, 47478424 + ... + 47479029.

It is an arithmetic number, because the mean of its divisors is an integer number (4842830154).

Almost surely, 2^28772108259 is an apocalyptic number.

28772108259 is a deficient number, since it is larger than the sum of its proper divisors (9970532973).

28772108259 is a wasteful number, since it uses less digits than its factorization.

28772108259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94957557.

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 28772108259 in words is "twenty-eight billion, seven hundred seventy-two million, one hundred eight thousand, two hundred fifty-nine".