28006600804 has 48 divisors (see below), whose sum is σ = 60336188416. Its totient is φ = 11076912000.

The previous prime is 28006600801. The next prime is 28006600813. The reversal of 28006600804 is 40800660082.

It is a super-2 number, since 2×28006600804² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28006600804.

It is not an unprimeable number, because it can be changed into a prime (28006600801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2418829 + ... + 2430379.

Almost surely, 2^28006600804 is an apocalyptic number.

It is an amenable number.

28006600804 is an abundant number, since it is smaller than the sum of its proper divisors (32329587612).

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

28006600804 is a wasteful number, since it uses less digits than its factorization.

28006600804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18236 (or 18234 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 28006600804 in words is "twenty-eight billion, six million, six hundred thousand, eight hundred four".