28110644952 has 64 divisors (see below), whose sum is σ = 75783912960. Its totient is φ = 8637840000.

The previous prime is 28110644909. The next prime is 28110644981. The reversal of 28110644952 is 25944601182.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174327 + ... + 294297.

It is an arithmetic number, because the mean of its divisors is an integer number (1184123640).

Almost surely, 2^28110644952 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 28110644952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37891956480).

28110644952 is an abundant number, since it is smaller than the sum of its proper divisors (47673268008).

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

28110644952 is a wasteful number, since it uses less digits than its factorization.

28110644952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120744 (or 120740 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 28110644952 in words is "twenty-eight billion, one hundred ten million, six hundred forty-four thousand, nine hundred fifty-two".