28454284608500 has 48 divisors (see below), whose sum is σ = 63316688919120. Its totient is φ = 11166964515200.

The previous prime is 28454284608461. The next prime is 28454284608557. The reversal of 28454284608500 is 580648245482.

28454284608500 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 14604305547364 + 13849979061136 = 3821558^2 + 3721556^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536846795 + ... + 536899794.

It is an arithmetic number, because the mean of its divisors is an integer number (1319097685815).

Almost surely, 2^{28454284608500} is an apocalyptic number.

28454284608500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28454284608500 is an abundant number, since it is smaller than the sum of its proper divisors (34862404310620).

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

28454284608500 is a wasteful number, since it uses less digits than its factorization.

28454284608500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073746661 (or 1073746649 counting only the distinct ones).

The product of its (nonzero) digits is 19660800, while the sum is 56.

The spelling of 28454284608500 in words is "twenty-eight trillion, four hundred fifty-four billion, two hundred eighty-four million, six hundred eight thousand, five hundred".