28316477214 has 48 divisors (see below), whose sum is σ = 64728892800. Its totient is φ = 8921629008.

The previous prime is 28316477201. The next prime is 28316477239. The reversal of 28316477214 is 41277461382.

It is a self number, because there is not a number n which added to its sum of digits gives 28316477214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55837 + ... + 244439.

It is an arithmetic number, because the mean of its divisors is an integer number (1348518600).

Almost surely, 2^28316477214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28316477214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32364446400).

28316477214 is an abundant number, since it is smaller than the sum of its proper divisors (36412415586).

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

28316477214 is a wasteful number, since it uses less digits than its factorization.

28316477214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189069 (or 189066 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The spelling of 28316477214 in words is "twenty-eight billion, three hundred sixteen million, four hundred seventy-seven thousand, two hundred fourteen".