11281779248 has 20 divisors (see below), whose sum is σ = 21865058880. Its totient is φ = 5639183424.

The previous prime is 11281779217. The next prime is 11281779263. The reversal of 11281779248 is 84297718211.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11281779196 and 11281779205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51215 + ... + 158702.

It is an arithmetic number, because the mean of its divisors is an integer number (1093252944).

Almost surely, 2^11281779248 is an apocalyptic number.

It is an amenable number.

11281779248 is a deficient number, since it is larger than the sum of its proper divisors (10583279632).

11281779248 is a wasteful number, since it uses less digits than its factorization.

11281779248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213284 (or 213278 counting only the distinct ones).

The product of its digits is 451584, while the sum is 50.

The spelling of 11281779248 in words is "eleven billion, two hundred eighty-one million, seven hundred seventy-nine thousand, two hundred forty-eight".