28438854114 has 64 divisors (see below), whose sum is σ = 64793945088. Its totient is φ = 8237064000.

The previous prime is 28438854097. The next prime is 28438854131. The reversal of 28438854114 is 41145883482.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28438854097) and next prime (28438854131).

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, 2305764 + ... + 2318064.

It is an arithmetic number, because the mean of its divisors is an integer number (1012405392).

Almost surely, 2^28438854114 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28438854114, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32396972544).

28438854114 is an abundant number, since it is smaller than the sum of its proper divisors (36355090974).

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

28438854114 is a wasteful number, since it uses less digits than its factorization.

28438854114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13863.

The product of its digits is 983040, while the sum is 48.

The spelling of 28438854114 in words is "twenty-eight billion, four hundred thirty-eight million, eight hundred fifty-four thousand, one hundred fourteen".