11784171340 has 12 divisors (see below), whose sum is σ = 24746759856. Its totient is φ = 4713668528.

The previous prime is 11784171319. The next prime is 11784171341. The reversal of 11784171340 is 4317148711.

It is a self number, because there is not a number n which added to its sum of digits gives 11784171340.

It is not an unprimeable number, because it can be changed into a prime (11784171341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294604264 + ... + 294604303.

It is an arithmetic number, because the mean of its divisors is an integer number (2062229988).

Almost surely, 2^11784171340 is an apocalyptic number.

11784171340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11784171340 is an abundant number, since it is smaller than the sum of its proper divisors (12962588516).

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

11784171340 is a wasteful number, since it uses less digits than its factorization.

11784171340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589208576 (or 589208574 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The spelling of 11784171340 in words is "eleven billion, seven hundred eighty-four million, one hundred seventy-one thousand, three hundred forty".