28238519332800 has 672 divisors, whose sum is σ = 118236991872000. Its totient is φ = 6422070251520.

The previous prime is 28238519332781. The next prime is 28238519332817. The reversal of 28238519332800 is 823391583282.

It is a happy number.

28238519332800 is a `hidden beast` number, since 28 + 23 + 8 + 519 + 3 + 3 + 2 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 59942974 + ... + 60412226.

Almost surely, 2^{28238519332800} is an apocalyptic number.

28238519332800 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 28238519332800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59118495936000).

28238519332800 is an abundant number, since it is smaller than the sum of its proper divisors (89998472539200).

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

28238519332800 is a wasteful number, since it uses less digits than its factorization.

28238519332800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469490 (or 469469 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 28238519332800 in words is "twenty-eight trillion, two hundred thirty-eight billion, five hundred nineteen million, three hundred thirty-two thousand, eight hundred".