11781435055844 has 48 divisors (see below), whose sum is σ = 22377401088000. Its totient is φ = 5413887158400.

The previous prime is 11781435055829. The next prime is 11781435055877. The reversal of 11781435055844 is 44855053418711.

It is a self number, because there is not a number n which added to its sum of digits gives 11781435055844.

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, 26635244 + ... + 27073955.

It is an arithmetic number, because the mean of its divisors is an integer number (466195856000).

Almost surely, 2^{11781435055844} is an apocalyptic number.

It is an amenable number.

11781435055844 is a deficient number, since it is larger than the sum of its proper divisors (10595966032156).

11781435055844 is a wasteful number, since it uses less digits than its factorization.

11781435055844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53709324 (or 53709322 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 56.

The spelling of 11781435055844 in words is "eleven trillion, seven hundred eighty-one billion, four hundred thirty-five million, fifty-five thousand, eight hundred forty-four".