11821085480 has 16 divisors (see below), whose sum is σ = 26597442420. Its totient is φ = 4728434176.

The previous prime is 11821085477. The next prime is 11821085527. The reversal of 11821085480 is 8458012811.

It can be written as a sum of positive squares in 2 ways, for example, as 11298414436 + 522671044 = 106294^2 + 22862^2 .

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, 147763529 + ... + 147763608.

Almost surely, 2^11821085480 is an apocalyptic number.

11821085480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11821085480 is an abundant number, since it is smaller than the sum of its proper divisors (14776356940).

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

11821085480 is a wasteful number, since it uses less digits than its factorization.

11821085480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295527148 (or 295527144 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 38.

The spelling of 11821085480 in words is "eleven billion, eight hundred twenty-one million, eighty-five thousand, four hundred eighty".