28782702220712 has 192 divisors, whose sum is σ = 65198799288000. Its totient is φ = 11855204444160.

The previous prime is 28782702220687. The next prime is 28782702220721. The reversal of 28782702220712 is 21702220728782.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56818208 + ... + 57322544.

It is an arithmetic number, because the mean of its divisors is an integer number (339577079625).

Almost surely, 2^{28782702220712} is an apocalyptic number.

28782702220712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28782702220712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32599399644000).

28782702220712 is an abundant number, since it is smaller than the sum of its proper divisors (36416097067288).

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

28782702220712 is a wasteful number, since it uses less digits than its factorization.

28782702220712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504520 (or 504505 counting only the distinct ones).

The product of its (nonzero) digits is 1404928, while the sum is 50.

The spelling of 28782702220712 in words is "twenty-eight trillion, seven hundred eighty-two billion, seven hundred two million, two hundred twenty thousand, seven hundred twelve".