28023187997376 has 336 divisors, whose sum is σ = 94382161735680. Its totient is φ = 7837308426240.

The previous prime is 28023187997317. The next prime is 28023187997383. The reversal of 28023187997376 is 67379978132082.

28023187997376 is a `hidden beast` number, since 2 + 80 + 23 + 1 + 8 + 79 + 97 + 376 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 540555265 + ... + 540607103.

It is an arithmetic number, because the mean of its divisors is an integer number (280899290880).

Almost surely, 2^{28023187997376} is an apocalyptic number.

28023187997376 is a gapful number since it is divisible by the number (26) 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 28023187997376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47191080867840).

28023187997376 is an abundant number, since it is smaller than the sum of its proper divisors (66358973738304).

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

28023187997376 is a wasteful number, since it uses less digits than its factorization.

28023187997376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58444 (or 58431 counting only the distinct ones).

The product of its (nonzero) digits is 384072192, while the sum is 72.

The spelling of 28023187997376 in words is "twenty-eight trillion, twenty-three billion, one hundred eighty-seven million, nine hundred ninety-seven thousand, three hundred seventy-six".