28889773289080 has 64 divisors (see below), whose sum is σ = 71172927175680. Its totient is φ = 10466606851200.

The previous prime is 28889773289077. The next prime is 28889773289081. The reversal of 28889773289080 is 8098237798882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28889773289081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121022044 + ... + 121260523.

It is an arithmetic number, because the mean of its divisors is an integer number (1112076987120).

Almost surely, 2^{28889773289080} is an apocalyptic number.

28889773289080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28889773289080 is an abundant number, since it is smaller than the sum of its proper divisors (42283153886600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28889773289080 is a wasteful number, since it uses less digits than its factorization.

28889773289080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242282860 (or 242282856 counting only the distinct ones).

The product of its (nonzero) digits is 1560674304, while the sum is 79.

The spelling of 28889773289080 in words is "twenty-eight trillion, eight hundred eighty-nine billion, seven hundred seventy-three million, two hundred eighty-nine thousand, eighty".