28110651188 has 12 divisors (see below), whose sum is σ = 49205956800. Its totient is φ = 14051806392.

The previous prime is 28110651187. The next prime is 28110651227. The reversal of 28110651188 is 88115601182.

It is a super-2 number, since 2×28110651188² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28110651181) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 861788 + ... + 893811.

It is an arithmetic number, because the mean of its divisors is an integer number (4100496400).

Almost surely, 2^28110651188 is an apocalyptic number.

It is an amenable number.

28110651188 is a deficient number, since it is larger than the sum of its proper divisors (21095305612).

28110651188 is a wasteful number, since it uses less digits than its factorization.

28110651188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759606 (or 1759604 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 41.

The spelling of 28110651188 in words is "twenty-eight billion, one hundred ten million, six hundred fifty-one thousand, one hundred eighty-eight".