28205464113 has 16 divisors (see below), whose sum is σ = 41789180800. Its totient is φ = 18802154160.

The previous prime is 28205464087. The next prime is 28205464123. The reversal of 28205464113 is 31146450282.

It is a happy number.

28205464113 is a `hidden beast` number, since 2 + 8 + 2 + 0 + 5 + 4 + 641 + 1 + 3 = 666.

It is not a de Polignac number, because 28205464113 - 2⁵ = 28205464081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28205464123) 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, 386523 + ... + 453663.

It is an arithmetic number, because the mean of its divisors is an integer number (2611823800).

Almost surely, 2^28205464113 is an apocalyptic number.

It is an amenable number.

28205464113 is a deficient number, since it is larger than the sum of its proper divisors (13583716687).

28205464113 is a wasteful number, since it uses less digits than its factorization.

28205464113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82709 (or 82703 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 28205464113 in words is "twenty-eight billion, two hundred five million, four hundred sixty-four thousand, one hundred thirteen".