28755666912 has 96 divisors (see below), whose sum is σ = 86585877504. Its totient is φ = 8185536000.

The previous prime is 28755666899. The next prime is 28755666931. The reversal of 28755666912 is 21966655782.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×28755666912³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103162 + ... + 261062.

It is an arithmetic number, because the mean of its divisors is an integer number (901936224).

Almost surely, 2^28755666912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28755666912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43292938752).

28755666912 is an abundant number, since it is smaller than the sum of its proper divisors (57830210592).

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

28755666912 is a wasteful number, since it uses less digits than its factorization.

28755666912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158192 (or 158184 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 57.

The spelling of 28755666912 in words is "twenty-eight billion, seven hundred fifty-five million, six hundred sixty-six thousand, nine hundred twelve".