28267055856000 has 1536 divisors, whose sum is σ = 115732208592000. Its totient is φ = 6561334886400.

The previous prime is 28267055855963. The next prime is 28267055856019. The reversal of 28267055856000 is 65855076282.

28267055856000 is a `hidden beast` number, since 2 + 8 + 2 + 6 + 70 + 5 + 5 + 8 + 560 + 0 + 0 = 666.

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, 2334377946 + ... + 2334390054.

Almost surely, 2^{28267055856000} is an apocalyptic number.

28267055856000 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 28267055856000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57866104296000).

28267055856000 is an abundant number, since it is smaller than the sum of its proper divisors (87465152736000).

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

28267055856000 is a wasteful number, since it uses less digits than its factorization.

28267055856000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12229 (or 12204 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 54.

The spelling of 28267055856000 in words is "twenty-eight trillion, two hundred sixty-seven billion, fifty-five million, eight hundred fifty-six thousand".