28818399601600 has 336 divisors, whose sum is σ = 84076279091200. Its totient is φ = 9513792921600.

The previous prime is 28818399601597. The next prime is 28818399601669. The reversal of 28818399601600 is 610699381882.

It is a congruent number.

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, 68884252 + ... + 69301348.

Almost surely, 2^{28818399601600} is an apocalyptic number.

28818399601600 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 28818399601600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42038139545600).

28818399601600 is an abundant number, since it is smaller than the sum of its proper divisors (55257879489600).

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

28818399601600 is a wasteful number, since it uses less digits than its factorization.

28818399601600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417356 (or 417341 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 61.

The spelling of 28818399601600 in words is "twenty-eight trillion, eight hundred eighteen billion, three hundred ninety-nine million, six hundred one thousand, six hundred".