28458487636980 has 24 divisors (see below), whose sum is σ = 79683765383712. Its totient is φ = 7588930036512.

The previous prime is 28458487636963. The next prime is 28458487637011. The reversal of 28458487636980 is 8963678485482.

28458487636980 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 28458487636896 and 28458487636905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237154063582 + ... + 237154063701.

It is an arithmetic number, because the mean of its divisors is an integer number (3320156890988).

Almost surely, 2^{28458487636980} is an apocalyptic number.

28458487636980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28458487636980 is an abundant number, since it is smaller than the sum of its proper divisors (51225277746732).

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

28458487636980 is a wasteful number, since it uses less digits than its factorization.

28458487636980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474308127295 (or 474308127293 counting only the distinct ones).

The product of its (nonzero) digits is 4459069440, while the sum is 78.

The spelling of 28458487636980 in words is "twenty-eight trillion, four hundred fifty-eight billion, four hundred eighty-seven million, six hundred thirty-six thousand, nine hundred eighty".