28362277845 has 128 divisors (see below), whose sum is σ = 60774727680. Its totient is φ = 12379530240.

The previous prime is 28362277841. The next prime is 28362277871. The reversal of 28362277845 is 54877226382.

28362277845 is a `hidden beast` number, since 2 + 8 + 3 + 622 + 7 + 7 + 8 + 4 + 5 = 666.

It is not a de Polignac number, because 28362277845 - 2² = 28362277841 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28362277791 and 28362277800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28362277841) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 556212 + ... + 605058.

It is an arithmetic number, because the mean of its divisors is an integer number (474802560).

Almost surely, 2^28362277845 is an apocalyptic number.

It is an amenable number.

28362277845 is an abundant number, since it is smaller than the sum of its proper divisors (32412449835).

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

28362277845 is a wasteful number, since it uses less digits than its factorization.

28362277845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48912 (or 48906 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The spelling of 28362277845 in words is "twenty-eight billion, three hundred sixty-two million, two hundred seventy-seven thousand, eight hundred forty-five".