28572210216 has 576 divisors, whose sum is σ = 96419756160. Its totient is φ = 7838208000.

The previous prime is 28572210133. The next prime is 28572210217. The reversal of 28572210216 is 61201227582.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28572210217) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 402425461 + ... + 402425531.

It is an arithmetic number, because the mean of its divisors is an integer number (167395410).

Almost surely, 2^28572210216 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 28572210216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48209878080).

28572210216 is an abundant number, since it is smaller than the sum of its proper divisors (67847545944).

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

28572210216 is a wasteful number, since it uses less digits than its factorization.

28572210216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

Adding to 28572210216 its reverse (61201227582), we get a palindrome (89773437798).

The spelling of 28572210216 in words is "twenty-eight billion, five hundred seventy-two million, two hundred ten thousand, two hundred sixteen".