11265847820 has 12 divisors (see below), whose sum is σ = 23658280464. Its totient is φ = 4506339120.

The previous prime is 11265847753. The next prime is 11265847829. The reversal of 11265847820 is 2874856211.

It is not an unprimeable number, because it can be changed into a prime (11265847829) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 281646176 + ... + 281646215.

It is an arithmetic number, because the mean of its divisors is an integer number (1971523372).

Almost surely, 2^11265847820 is an apocalyptic number.

11265847820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11265847820 is an abundant number, since it is smaller than the sum of its proper divisors (12392432644).

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

11265847820 is a wasteful number, since it uses less digits than its factorization.

11265847820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563292400 (or 563292398 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 11265847820 in words is "eleven billion, two hundred sixty-five million, eight hundred forty-seven thousand, eight hundred twenty".