11807821180 has 24 divisors (see below), whose sum is σ = 24816330000. Its totient is φ = 4719336960.

The previous prime is 11807821133. The next prime is 11807821237. The reversal of 11807821180 is 8112870811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211366 + ... + 261325.

It is an arithmetic number, because the mean of its divisors is an integer number (1034013750).

Almost surely, 2^11807821180 is an apocalyptic number.

11807821180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11807821180 is an abundant number, since it is smaller than the sum of its proper divisors (13008508820).

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

11807821180 is a wasteful number, since it uses less digits than its factorization.

11807821180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473949 (or 473947 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 37.

The spelling of 11807821180 in words is "eleven billion, eight hundred seven million, eight hundred twenty-one thousand, one hundred eighty".