28548989075 has 12 divisors (see below), whose sum is σ = 35765705640. Its totient is φ = 22603733760.

The previous prime is 28548989069. The next prime is 28548989093. The reversal of 28548989075 is 57098984582.

It is not a de Polignac number, because 28548989075 - 2⁴ = 28548989059 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5883965 + ... + 5888814.

It is an arithmetic number, because the mean of its divisors is an integer number (2980475470).

Almost surely, 2^28548989075 is an apocalyptic number.

28548989075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28548989075 is a deficient number, since it is larger than the sum of its proper divisors (7216716565).

28548989075 is a wasteful number, since it uses less digits than its factorization.

28548989075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11772886 (or 11772881 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 65.

The spelling of 28548989075 in words is "twenty-eight billion, five hundred forty-eight million, nine hundred eighty-nine thousand, seventy-five".