28847215998720 has 1728 divisors, whose sum is σ = 120114895380480. Its totient is φ = 6492831105024.

The previous prime is 28847215998683. The next prime is 28847215998781. The reversal of 28847215998720 is 2789951274882.

28847215998720 is a `hidden beast` number, since 2 + 8 + 8 + 4 + 7 + 2 + 1 + 599 + 8 + 7 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 68847770671 + ... + 68847771089.

Almost surely, 2^{28847215998720} is an apocalyptic number.

28847215998720 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 28847215998720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60057447690240).

28847215998720 is an abundant number, since it is smaller than the sum of its proper divisors (91267679381760).

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

28847215998720 is a wasteful number, since it uses less digits than its factorization.

28847215998720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 325140480, while the sum is 72.

The spelling of 28847215998720 in words is "twenty-eight trillion, eight hundred forty-seven billion, two hundred fifteen million, nine hundred ninety-eight thousand, seven hundred twenty".