28758056060988 has 48 divisors (see below), whose sum is σ = 75478391330720. Its totient is φ = 9586018684080.

The previous prime is 28758056060977. The next prime is 28758056061001. The reversal of 28758056060988 is 88906065085782.

28758056060988 is a `hidden beast` number, since 2 + 8 + 7 + 5 + 8 + 0 + 5 + 6 + 0 + 609 + 8 + 8 = 666.

It is a super-2 number, since 2×28758056060988² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1643684443 + ... + 1643701938.

Almost surely, 2^{28758056060988} is an apocalyptic number.

It is an amenable number.

28758056060988 is an abundant number, since it is smaller than the sum of its proper divisors (46720335269732).

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

28758056060988 is an equidigital number, since it uses as much as digits as its factorization.

28758056060988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287386406 (or 3287386386 counting only the distinct ones).

The product of its (nonzero) digits is 464486400, while the sum is 72.

The spelling of 28758056060988 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-six million, sixty thousand, nine hundred eighty-eight".