4224287882728 has 8 divisors (see below), whose sum is σ = 7920539780130. Its totient is φ = 2112143941360.

The previous prime is 4224287882701. The next prime is 4224287882761. The reversal of 4224287882728 is 8272887824224.

It can be written as a sum of positive squares in only one way, i.e., 2139146106724 + 2085141776004 = 1462582^2 + 1444002^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 4224287882728.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264017992663 + ... + 264017992678.

Almost surely, 2^{4224287882728} is an apocalyptic number.

It is an amenable number.

4224287882728 is a deficient number, since it is larger than the sum of its proper divisors (3696251897402).

4224287882728 is a wasteful number, since it uses less digits than its factorization.

4224287882728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528035985347 (or 528035985343 counting only the distinct ones).

The product of its digits is 102760448, while the sum is 64.

It can be divided in two parts, 4224287 and 882728, that added together give a palindrome (5107015).

The spelling of 4224287882728 in words is "four trillion, two hundred twenty-four billion, two hundred eighty-seven million, eight hundred eighty-two thousand, seven hundred twenty-eight".