28341780116 has 12 divisors (see below), whose sum is σ = 53413354932. Its totient is φ = 13080821568.

The previous prime is 28341780113. The next prime is 28341780133. The reversal of 28341780116 is 61108714382.

It can be written as a sum of positive squares in 2 ways, for example, as 7039210000 + 21302570116 = 83900^2 + 145954^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28341780113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272517065 + ... + 272517168.

It is an arithmetic number, because the mean of its divisors is an integer number (4451112911).

Almost surely, 2^28341780116 is an apocalyptic number.

28341780116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28341780116 is a deficient number, since it is larger than the sum of its proper divisors (25071574816).

28341780116 is a wasteful number, since it uses less digits than its factorization.

28341780116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545034250 (or 545034248 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 28341780116 in words is "twenty-eight billion, three hundred forty-one million, seven hundred eighty thousand, one hundred sixteen".