28506210048 has 108 divisors (see below), whose sum is σ = 82735748368. Its totient is φ = 9439027200.

The previous prime is 28506210041. The next prime is 28506210071. The reversal of 28506210048 is 84001260582.

28506210048 is a `hidden beast` number, since 2 + 8 + 506 + 2 + 100 + 48 = 666.

It is a super-2 number, since 2×28506210048² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 28506209994 and 28506210021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28506210041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306936 + ... + 388872.

Almost surely, 2^28506210048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28506210048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41367874184).

28506210048 is an abundant number, since it is smaller than the sum of its proper divisors (54229538320).

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

28506210048 is a wasteful number, since it uses less digits than its factorization.

28506210048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82110 (or 82093 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 28506210048 in words is "twenty-eight billion, five hundred six million, two hundred ten thousand, forty-eight".