28060631208 has 24 divisors (see below), whose sum is σ = 75997543050. Its totient is φ = 9353543712.

The previous prime is 28060631201. The next prime is 28060631219. The reversal of 28060631208 is 80213606082.

28060631208 is a `hidden beast` number, since 28 + 0 + 606 + 3 + 1 + 20 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26257609764 + 1803021444 = 162042^2 + 42462^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28060631201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194865423 + ... + 194865566.

Almost surely, 2^28060631208 is an apocalyptic number.

It is an amenable number.

28060631208 is an abundant number, since it is smaller than the sum of its proper divisors (47936911842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28060631208 is a wasteful number, since it uses less digits than its factorization.

28060631208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389731001 (or 389730994 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 28060631208 in words is "twenty-eight billion, sixty million, six hundred thirty-one thousand, two hundred eight".