28124933608 has 8 divisors (see below), whose sum is σ = 52734250530. Its totient is φ = 14062466800.

The previous prime is 28124933587. The next prime is 28124933609. The reversal of 28124933608 is 80633942182.

It can be written as a sum of positive squares in only one way, i.e., 26275761604 + 1849172004 = 162098^2 + 43002^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (28124933609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1757808343 + ... + 1757808358.

Almost surely, 2^28124933608 is an apocalyptic number.

It is an amenable number.

28124933608 is a deficient number, since it is larger than the sum of its proper divisors (24609316922).

28124933608 is a wasteful number, since it uses less digits than its factorization.

28124933608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515616707 (or 3515616703 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 28124933608 in words is "twenty-eight billion, one hundred twenty-four million, nine hundred thirty-three thousand, six hundred eight".