28489598093 has 4 divisors (see below), whose sum is σ = 31079561568. Its totient is φ = 25899634620.

The previous prime is 28489598041. The next prime is 28489598101. The reversal of 28489598093 is 39089598482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28489598093 - 2⁸ = 28489597837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28489598593) 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, 1294981721 + ... + 1294981742.

It is an arithmetic number, because the mean of its divisors is an integer number (7769890392).

Almost surely, 2^28489598093 is an apocalyptic number.

It is an amenable number.

28489598093 is a deficient number, since it is larger than the sum of its proper divisors (2589963475).

28489598093 is a wasteful number, since it uses less digits than its factorization.

28489598093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589963474.

The product of its (nonzero) digits is 44789760, while the sum is 65.

The spelling of 28489598093 in words is "twenty-eight billion, four hundred eighty-nine million, five hundred ninety-eight thousand, ninety-three".