28084012148 has 12 divisors (see below), whose sum is σ = 50841746340. Its totient is φ = 13557798912.

The previous prime is 28084012141. The next prime is 28084012163. The reversal of 28084012148 is 84121048082.

It can be written as a sum of positive squares in 2 ways, for example, as 18721901584 + 9362110564 = 136828^2 + 96758^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28084012141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121051661 + ... + 121051892.

It is an arithmetic number, because the mean of its divisors is an integer number (4236812195).

Almost surely, 2^28084012148 is an apocalyptic number.

It is an amenable number.

28084012148 is a deficient number, since it is larger than the sum of its proper divisors (22757734192).

28084012148 is a wasteful number, since it uses less digits than its factorization.

28084012148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242103586 (or 242103584 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 38.

The spelling of 28084012148 in words is "twenty-eight billion, eighty-four million, twelve thousand, one hundred forty-eight".