28658285682 has 64 divisors (see below), whose sum is σ = 62973469440. Its totient is φ = 8640748800.

The previous prime is 28658285681. The next prime is 28658285701.

28658285682 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×28658285682² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28658285681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1268707 + ... + 1291097.

It is an arithmetic number, because the mean of its divisors is an integer number (983960460).

Almost surely, 2^28658285682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28658285682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31486734720).

28658285682 is an abundant number, since it is smaller than the sum of its proper divisors (34315183758).

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

28658285682 is a wasteful number, since it uses less digits than its factorization.

28658285682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22739.

The product of its digits is 29491200, while the sum is 60.

The spelling of 28658285682 in words is "twenty-eight billion, six hundred fifty-eight million, two hundred eighty-five thousand, six hundred eighty-two".