28265092560 has 100 divisors (see below), whose sum is σ = 98168876388. Its totient is φ = 7537356288.

The previous prime is 28265092439. The next prime is 28265092561. The reversal of 28265092560 is 6529056282.

28265092560 is a `hidden beast` number, since 2 + 82 + 6 + 5 + 0 + 9 + 2 + 560 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12470635584 + 15794456976 = 111672^2 + 125676^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28265092561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2174469 + ... + 2187428.

Almost surely, 2^28265092560 is an apocalyptic number.

28265092560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28265092560 is an abundant number, since it is smaller than the sum of its proper divisors (69903783828).

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

28265092560 is a wasteful number, since it uses less digits than its factorization.

28265092560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4361922 (or 4361907 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 28265092560 in words is "twenty-eight billion, two hundred sixty-five million, ninety-two thousand, five hundred sixty".