28145050560 has 280 divisors, whose sum is σ = 109219538736. Its totient is φ = 6822973440.

The previous prime is 28145050529. The next prime is 28145050601. The reversal of 28145050560 is 6505054182.

28145050560 is a `hidden beast` number, since 2 + 8 + 1 + 45 + 0 + 50 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 235764 + ... + 334476.

Almost surely, 2^28145050560 is an apocalyptic number.

28145050560 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 28145050560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54609769368).

28145050560 is an abundant number, since it is smaller than the sum of its proper divisors (81074488176).

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

28145050560 is a wasteful number, since it uses less digits than its factorization.

28145050560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98753 (or 98734 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 28145050560 in words is "twenty-eight billion, one hundred forty-five million, fifty thousand, five hundred sixty".