28023893968896 has 480 divisors, whose sum is σ = 97698739057920. Its totient is φ = 7836453568512.

The previous prime is 28023893968883. The next prime is 28023893968909. The reversal of 28023893968896 is 69886939832082.

28023893968896 is a `hidden beast` number, since 280 + 2 + 3 + 8 + 93 + 96 + 88 + 96 = 666.

It is an interprime number because it is at equal distance from previous prime (28023893968883) and next prime (28023893968909).

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 54320416 + ... + 54833888.

It is an arithmetic number, because the mean of its divisors is an integer number (203539039704).

Almost surely, 2^{28023893968896} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28023893968896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48849369528960).

28023893968896 is an abundant number, since it is smaller than the sum of its proper divisors (69674845089024).

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

28023893968896 is an equidigital number, since it uses as much as digits as its factorization.

28023893968896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513561 (or 513532 counting only the distinct ones).

The product of its (nonzero) digits is 3869835264, while the sum is 81.

The spelling of 28023893968896 in words is "twenty-eight trillion, twenty-three billion, eight hundred ninety-three million, nine hundred sixty-eight thousand, eight hundred ninety-six".