28052559360 has 640 divisors, whose sum is σ = 117032509440. Its totient is φ = 6234734592.

The previous prime is 28052559347. The next prime is 28052559373. The reversal of 28052559360 is 6395525082.

28052559360 is a `hidden beast` number, since 2 + 8 + 0 + 52 + 5 + 593 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (28052559347) and next prime (28052559373).

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17901297 + ... + 17902863.

It is an arithmetic number, because the mean of its divisors is an integer number (182863296).

Almost surely, 2^28052559360 is an apocalyptic number.

28052559360 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 28052559360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58516254720).

28052559360 is an abundant number, since it is smaller than the sum of its proper divisors (88979950080).

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

28052559360 is a wasteful number, since it uses less digits than its factorization.

28052559360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643 (or 1621 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 28052559360 in words is "twenty-eight billion, fifty-two million, five hundred fifty-nine thousand, three hundred sixty".