28568362836 has 192 divisors, whose sum is σ = 79094937600. Its totient is φ = 7940934144.

The previous prime is 28568362831. The next prime is 28568362841. The reversal of 28568362836 is 63826386582.

It is an interprime number because it is at equal distance from previous prime (28568362831) and next prime (28568362841).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28568362831) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42198130 + ... + 42198806.

It is an arithmetic number, because the mean of its divisors is an integer number (411952800).

Almost surely, 2^28568362836 is an apocalyptic number.

28568362836 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28568362836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39547468800).

28568362836 is an abundant number, since it is smaller than the sum of its proper divisors (50526574764).

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

28568362836 is a wasteful number, since it uses less digits than its factorization.

28568362836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358 (or 1356 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 57.

The spelling of 28568362836 in words is "twenty-eight billion, five hundred sixty-eight million, three hundred sixty-two thousand, eight hundred thirty-six".