11273820852 has 48 divisors (see below), whose sum is σ = 31370637312. Its totient is φ = 3081043680.

The previous prime is 11273820787. The next prime is 11273820953. The reversal of 11273820852 is 25802837211.

It is a self number, because there is not a number n which added to its sum of digits gives 11273820852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2915724 + ... + 2919587.

It is an arithmetic number, because the mean of its divisors is an integer number (653554944).

Almost surely, 2^11273820852 is an apocalyptic number.

11273820852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11273820852 is an abundant number, since it is smaller than the sum of its proper divisors (20096816460).

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

11273820852 is a wasteful number, since it uses less digits than its factorization.

11273820852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5835348 (or 5835346 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 11273820852 in words is "eleven billion, two hundred seventy-three million, eight hundred twenty thousand, eight hundred fifty-two".