28386356832 has 216 divisors, whose sum is σ = 87172826832. Its totient is φ = 8757964800.

The previous prime is 28386356813. The next prime is 28386356851. The reversal of 28386356832 is 23865368382.

28386356832 is a `hidden beast` number, since 283 + 8 + 6 + 356 + 8 + 3 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (28386356813) and next prime (28386356851).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5074357 + ... + 5079947.

It is an arithmetic number, because the mean of its divisors is an integer number (403577902).

Almost surely, 2^28386356832 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 28386356832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43586413416).

28386356832 is an abundant number, since it is smaller than the sum of its proper divisors (58786470000).

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

28386356832 is a wasteful number, since it uses less digits than its factorization.

28386356832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5702 (or 5674 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The spelling of 28386356832 in words is "twenty-eight billion, three hundred eighty-six million, three hundred fifty-six thousand, eight hundred thirty-two".