11773045811520 has 3584 divisors, whose sum is σ = 54948973363200. Its totient is φ = 2308778754048.

The previous prime is 11773045811519. The next prime is 11773045811551. The reversal of 11773045811520 is 2511854037711.

11773045811520 is a `hidden beast` number, since 1 + 1 + 7 + 7 + 3 + 0 + 45 + 81 + 1 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 85934640892 + ... + 85934641028.

It is an arithmetic number, because the mean of its divisors is an integer number (15331744800).

Almost surely, 2^{11773045811520} is an apocalyptic number.

11773045811520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11773045811520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27474486681600).

11773045811520 is an abundant number, since it is smaller than the sum of its proper divisors (43175927551680).

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

11773045811520 is a wasteful number, since it uses less digits than its factorization.

11773045811520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 45.

The spelling of 11773045811520 in words is "eleven trillion, seven hundred seventy-three billion, forty-five million, eight hundred eleven thousand, five hundred twenty".