11909784846 has 8 divisors (see below), whose sum is σ = 23819569704. Its totient is φ = 3969928280.

The previous prime is 11909784841. The next prime is 11909784853. The reversal of 11909784846 is 64848790911.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

11909784846 is an admirable number.

It is a super-2 number, since 2×11909784846² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11909784841) 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, 992482065 + ... + 992482076.

It is an arithmetic number, because the mean of its divisors is an integer number (2977446213).

Almost surely, 2^11909784846 is an apocalyptic number.

11909784846 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11909784846 is a wasteful number, since it uses less digits than its factorization.

11909784846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984964146.

The product of its (nonzero) digits is 3483648, while the sum is 57.

The spelling of 11909784846 in words is "eleven billion, nine hundred nine million, seven hundred eighty-four thousand, eight hundred forty-six".