28163340052 has 6 divisors (see below), whose sum is σ = 49285845098. Its totient is φ = 14081670024.

The previous prime is 28163340011. The next prime is 28163340089. The reversal of 28163340052 is 25004336182.

It can be written as a sum of positive squares in only one way, i.e., 23677823376 + 4485516676 = 153876^2 + 66974^2 .

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, 3520417503 + ... + 3520417510.

Almost surely, 2^28163340052 is an apocalyptic number.

It is an amenable number.

28163340052 is a deficient number, since it is larger than the sum of its proper divisors (21122505046).

28163340052 is a wasteful number, since it uses less digits than its factorization.

28163340052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040835017 (or 7040835015 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 28163340052 in words is "twenty-eight billion, one hundred sixty-three million, three hundred forty thousand, fifty-two".