28574872830 has 144 divisors (see below), whose sum is σ = 87006441600. Its totient is φ = 6487415424.

The previous prime is 28574872801. The next prime is 28574872849. The reversal of 28574872830 is 3827847582.

28574872830 is a `hidden beast` number, since 2 + 85 + 7 + 487 + 2 + 83 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 635347 + ... + 678833.

It is an arithmetic number, because the mean of its divisors is an integer number (604211400).

Almost surely, 2^28574872830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28574872830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43503220800).

28574872830 is an abundant number, since it is smaller than the sum of its proper divisors (58431568770).

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

28574872830 is a wasteful number, since it uses less digits than its factorization.

28574872830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43663 (or 43653 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The spelling of 28574872830 in words is "twenty-eight billion, five hundred seventy-four million, eight hundred seventy-two thousand, eight hundred thirty".