11287216284 has 12 divisors (see below), whose sum is σ = 26336838024. Its totient is φ = 3762405424.

The previous prime is 11287216279. The next prime is 11287216289. The reversal of 11287216284 is 48261278211.

It is an interprime number because it is at equal distance from previous prime (11287216279) and next prime (11287216289).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11287216289) 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, 470300667 + ... + 470300690.

It is an arithmetic number, because the mean of its divisors is an integer number (2194736502).

Almost surely, 2^11287216284 is an apocalyptic number.

It is an amenable number.

11287216284 is an abundant number, since it is smaller than the sum of its proper divisors (15049621740).

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

11287216284 is a wasteful number, since it uses less digits than its factorization.

11287216284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940601364 (or 940601362 counting only the distinct ones).

The product of its digits is 86016, while the sum is 42.

The spelling of 11287216284 in words is "eleven billion, two hundred eighty-seven million, two hundred sixteen thousand, two hundred eighty-four".