28934316180 has 768 divisors, whose sum is σ = 116168048640. Its totient is φ = 5927644800.

The previous prime is 28934316163. The next prime is 28934316223. The reversal of 28934316180 is 8161343982.

28934316180 is a `hidden beast` number, since 2 + 89 + 3 + 431 + 61 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 407525545 + ... + 407525615.

It is an arithmetic number, because the mean of its divisors is an integer number (151260480).

Almost surely, 2^28934316180 is an apocalyptic number.

28934316180 is a gapful number since it is divisible by the number (20) 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 28934316180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58084024320).

28934316180 is an abundant number, since it is smaller than the sum of its proper divisors (87233732460).

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

28934316180 is an equidigital number, since it uses as much as digits as its factorization.

28934316180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 28934316180 in words is "twenty-eight billion, nine hundred thirty-four million, three hundred sixteen thousand, one hundred eighty".