28467380445880 has 64 divisors (see below), whose sum is σ = 64956752755200. Its totient is φ = 11227092387840.

The previous prime is 28467380445869. The next prime is 28467380445953. The reversal of 28467380445880 is 8854408376482.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15623835 + ... + 17350474.

It is an arithmetic number, because the mean of its divisors is an integer number (1014949261800).

Almost surely, 2^{28467380445880} is an apocalyptic number.

28467380445880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28467380445880 is an abundant number, since it is smaller than the sum of its proper divisors (36489372309320).

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

28467380445880 is a wasteful number, since it uses less digits than its factorization.

28467380445880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32974624 (or 32974620 counting only the distinct ones).

The product of its (nonzero) digits is 330301440, while the sum is 67.

The spelling of 28467380445880 in words is "twenty-eight trillion, four hundred sixty-seven billion, three hundred eighty million, four hundred forty-five thousand, eight hundred eighty".