28603221516288 has 168 divisors, whose sum is σ = 82706847271776. Its totient is φ = 9525134131200.

The previous prime is 28603221516281. The next prime is 28603221516379. The reversal of 28603221516288 is 88261512230682.

28603221516288 is a `hidden beast` number, since 2 + 8 + 6 + 0 + 3 + 2 + 2 + 1 + 5 + 1 + 628 + 8 = 666.

It is a super-2 number, since 2×28603221516288² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28603221516281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75825423 + ... + 76201713.

It is an arithmetic number, because the mean of its divisors is an integer number (492302662332).

Almost surely, 2^{28603221516288} 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 28603221516288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41353423635888).

28603221516288 is an abundant number, since it is smaller than the sum of its proper divisors (54103625755488).

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

28603221516288 is a wasteful number, since it uses less digits than its factorization.

28603221516288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377354 (or 377327 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 28603221516288 in words is "twenty-eight trillion, six hundred three billion, two hundred twenty-one million, five hundred sixteen thousand, two hundred eighty-eight".