11279680984 has 96 divisors (see below), whose sum is σ = 25149065760. Its totient is φ = 4711196160.

The previous prime is 11279680963. The next prime is 11279681003. The reversal of 11279680984 is 48908697211.

It is a happy number.

It is a super-2 number, since 2×11279680984² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2930149 + ... + 2933995.

It is an arithmetic number, because the mean of its divisors is an integer number (261969435).

Almost surely, 2^11279680984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11279680984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12574532880).

11279680984 is an abundant number, since it is smaller than the sum of its proper divisors (13869384776).

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

11279680984 is a wasteful number, since it uses less digits than its factorization.

11279680984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121 (or 4106 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 11279680984 in words is "eleven billion, two hundred seventy-nine million, six hundred eighty thousand, nine hundred eighty-four".