28061103018 has 64 divisors (see below), whose sum is σ = 62559624960. Its totient is φ = 8331628032.

The previous prime is 28061102981. The next prime is 28061103061. The reversal of 28061103018 is 81030116082.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6528246 + ... + 6532542.

It is an arithmetic number, because the mean of its divisors is an integer number (977494140).

Almost surely, 2^28061103018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28061103018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31279812480).

28061103018 is an abundant number, since it is smaller than the sum of its proper divisors (34498521942).

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

28061103018 is a wasteful number, since it uses less digits than its factorization.

28061103018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231.

The product of its (nonzero) digits is 2304, while the sum is 30.

The spelling of 28061103018 in words is "twenty-eight billion, sixty-one million, one hundred three thousand, eighteen".