11553728347820 has 24 divisors (see below), whose sum is σ = 24595197061344. Its totient is φ = 4558183238016.

The previous prime is 11553728347813. The next prime is 11553728347841. The reversal of 11553728347820 is 2874382735511.

It is a happy 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, 3956754824 + ... + 3956757743.

It is an arithmetic number, because the mean of its divisors is an integer number (1024799877556).

Almost surely, 2^{11553728347820} is an apocalyptic number.

11553728347820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11553728347820 is an abundant number, since it is smaller than the sum of its proper divisors (13041468713524).

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

11553728347820 is a wasteful number, since it uses less digits than its factorization.

11553728347820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7913512649 (or 7913512647 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 11553728347820 in words is "eleven trillion, five hundred fifty-three billion, seven hundred twenty-eight million, three hundred forty-seven thousand, eight hundred twenty".