11912009044320 has 384 divisors, whose sum is σ = 51979677281280. Its totient is φ = 2475222589440.

The previous prime is 11912009044289. The next prime is 11912009044343. The reversal of 11912009044320 is 2344090021911.

11912009044320 is a `hidden beast` number, since 1 + 1 + 9 + 1 + 200 + 9 + 0 + 443 + 2 + 0 = 666.

It is a super-2 number, since 2×11912009044320² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17572617 + ... + 18237896.

It is an arithmetic number, because the mean of its divisors is an integer number (135363742920).

Almost surely, 2^{11912009044320} is an apocalyptic number.

11912009044320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11912009044320 is an abundant number, since it is smaller than the sum of its proper divisors (40067668236960).

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

11912009044320 is a wasteful number, since it uses less digits than its factorization.

11912009044320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35810555 (or 35810541 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 11912009044320 in words is "eleven trillion, nine hundred twelve billion, nine million, forty-four thousand, three hundred twenty".