28078960018752 has 140 divisors (see below), whose sum is σ = 83890228195840. Its totient is φ = 9285955064064.

The previous prime is 28078960018741. The next prime is 28078960018771. The reversal of 28078960018752 is 25781006987082.

28078960018752 is a `hidden beast` number, since 2 + 8 + 0 + 7 + 8 + 9 + 600 + 18 + 7 + 5 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28078960018752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20666302 + ... + 21983037.

Almost surely, 2^{28078960018752} is an apocalyptic number.

It is an amenable number.

28078960018752 is an abundant number, since it is smaller than the sum of its proper divisors (55811268177088).

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

28078960018752 is a wasteful number, since it uses less digits than its factorization.

28078960018752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42649490 (or 42649471 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 63.

The spelling of 28078960018752 in words is "twenty-eight trillion, seventy-eight billion, nine hundred sixty million, eighteen thousand, seven hundred fifty-two".