28004375006600 has 48 divisors (see below), whose sum is σ = 65112278524020. Its totient is φ = 11201387571200.

The previous prime is 28004375006599. The next prime is 28004375006617. The reversal of 28004375006600 is 660057340082.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 8079453783844 + 19924921222756 = 2842438^2 + 4463734^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3974564 + ... + 8473836.

Almost surely, 2^{28004375006600} is an apocalyptic number.

28004375006600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28004375006600 is an abundant number, since it is smaller than the sum of its proper divisors (37107903517420).

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

28004375006600 is a wasteful number, since it uses less digits than its factorization.

28004375006600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4530410 (or 4530401 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 28004375006600 in words is "twenty-eight trillion, four billion, three hundred seventy-five million, six thousand, six hundred".