28210013668180 has 48 divisors (see below), whose sum is σ = 59739904264320. Its totient is φ = 11189179324800.

The previous prime is 28210013668147. The next prime is 28210013668181. The reversal of 28210013668180 is 8186631001282.

It is a self number, because there is not a number n which added to its sum of digits gives 28210013668180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28210013668181) by changing a digit.

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, 3897576 + ... + 8462335.

It is an arithmetic number, because the mean of its divisors is an integer number (1244581338840).

Almost surely, 2^{28210013668180} is an apocalyptic number.

28210013668180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28210013668180 is an abundant number, since it is smaller than the sum of its proper divisors (31529890596140).

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

28210013668180 is a wasteful number, since it uses less digits than its factorization.

28210013668180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12360880 (or 12360878 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The spelling of 28210013668180 in words is "twenty-eight trillion, two hundred ten billion, thirteen million, six hundred sixty-eight thousand, one hundred eighty".