28648648148 has 6 divisors (see below), whose sum is σ = 50135134266. Its totient is φ = 14324324072.

The previous prime is 28648648111. The next prime is 28648648159. The reversal of 28648648148 is 84184684682.

It can be written as a sum of positive squares in only one way, i.e., 24280495684 + 4368152464 = 155822^2 + 66092^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3581081015 + ... + 3581081022.

It is an arithmetic number, because the mean of its divisors is an integer number (8355855711).

Almost surely, 2^28648648148 is an apocalyptic number.

It is an amenable number.

28648648148 is a deficient number, since it is larger than the sum of its proper divisors (21486486118).

28648648148 is a wasteful number, since it uses less digits than its factorization.

28648648148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7162162041 (or 7162162039 counting only the distinct ones).

The product of its digits is 18874368, while the sum is 59.

The spelling of 28648648148 in words is "twenty-eight billion, six hundred forty-eight million, six hundred forty-eight thousand, one hundred forty-eight".