28773308160 has 576 divisors, whose sum is σ = 111259008000. Its totient is φ = 7013744640.

The previous prime is 28773308153. The next prime is 28773308191. The reversal of 28773308160 is 6180337782.

28773308160 is a `hidden beast` number, since 287 + 7 + 3 + 308 + 1 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

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 polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19041805 + ... + 19043315.

It is an arithmetic number, because the mean of its divisors is an integer number (193158000).

Almost surely, 2^28773308160 is an apocalyptic number.

28773308160 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 28773308160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55629504000).

28773308160 is an abundant number, since it is smaller than the sum of its proper divisors (82485699840).

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

28773308160 is a wasteful number, since it uses less digits than its factorization.

28773308160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 28773308160 in words is "twenty-eight billion, seven hundred seventy-three million, three hundred eight thousand, one hundred sixty".