11181280892 has 24 divisors (see below), whose sum is σ = 20985728400. Its totient is φ = 5196462336.

The previous prime is 11181280867. The next prime is 11181280921. The reversal of 11181280892 is 29808218111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1383917 + ... + 1391972.

It is an arithmetic number, because the mean of its divisors is an integer number (874405350).

Almost surely, 2^11181280892 is an apocalyptic number.

It is an amenable number.

11181280892 is a deficient number, since it is larger than the sum of its proper divisors (9804447508).

11181280892 is a wasteful number, since it uses less digits than its factorization.

11181280892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775965 (or 2775963 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 41.

The spelling of 11181280892 in words is "eleven billion, one hundred eighty-one million, two hundred eighty thousand, eight hundred ninety-two".