28502118016 has 32 divisors (see below), whose sum is σ = 57500337600. Its totient is φ = 14070660864.

The previous prime is 28502117999. The next prime is 28502118017. The reversal of 28502118016 is 61081120582.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (28502118017) 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 3 ways as a sum of consecutive naturals, for example, 1399210 + ... + 1419433.

It is an arithmetic number, because the mean of its divisors is an integer number (1796885550).

Almost surely, 2^28502118016 is an apocalyptic number.

It is an amenable number.

28502118016 is an abundant number, since it is smaller than the sum of its proper divisors (28998219584).

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

28502118016 is an equidigital number, since it uses as much as digits as its factorization.

28502118016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818736 (or 2818724 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 34.

Adding to 28502118016 its reverse (61081120582), we get a palindrome (89583238598).

The spelling of 28502118016 in words is "twenty-eight billion, five hundred two million, one hundred eighteen thousand, sixteen".