28030507560 has 384 divisors, whose sum is σ = 104213640960. Its totient is φ = 6467788800.

The previous prime is 28030507541. The next prime is 28030507577. The reversal of 28030507560 is 6570503082.

28030507560 is a `hidden beast` number, since 280 + 305 + 0 + 75 + 6 + 0 = 666.

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

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, 21949642 + ... + 21950918.

It is an arithmetic number, because the mean of its divisors is an integer number (271389690).

Almost surely, 2^28030507560 is an apocalyptic number.

28030507560 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 28030507560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52106820480).

28030507560 is an abundant number, since it is smaller than the sum of its proper divisors (76183133400).

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

28030507560 is a wasteful number, since it uses less digits than its factorization.

28030507560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 28030507560 in words is "twenty-eight billion, thirty million, five hundred seven thousand, five hundred sixty".