28947892380000 has 1200 divisors, whose sum is σ = 107920490388480. Its totient is φ = 6784905600000.

The previous prime is 28947892379909. The next prime is 28947892380019. The reversal of 28947892380000 is 8329874982.

It is a tau number, because it is divible by the number of its divisors (1200).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 199 ways as a sum of consecutive naturals, for example, 27232259469 + ... + 27232260531.

Almost surely, 2^{28947892380000} is an apocalyptic number.

28947892380000 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 28947892380000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53960245194240).

28947892380000 is an abundant number, since it is smaller than the sum of its proper divisors (78972598008480).

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

28947892380000 is an equidigital number, since it uses as much as digits as its factorization.

28947892380000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 60.

The spelling of 28947892380000 in words is "twenty-eight trillion, nine hundred forty-seven billion, eight hundred ninety-two million, three hundred eighty thousand".