11945869848 has 256 divisors, whose sum is σ = 38651904000. Its totient is φ = 3380227200.

The previous prime is 11945869843. The next prime is 11945869849. The reversal of 11945869848 is 84896854911.

11945869848 is a `hidden beast` number, since 1 + 1 + 9 + 4 + 586 + 9 + 8 + 48 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11945869843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3203361 + ... + 3207087.

It is an arithmetic number, because the mean of its divisors is an integer number (150984000).

Almost surely, 2^11945869848 is an apocalyptic number.

11945869848 is a gapful number since it is divisible by the number (18) 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 11945869848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19325952000).

11945869848 is an abundant number, since it is smaller than the sum of its proper divisors (26706034152).

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

11945869848 is a wasteful number, since it uses less digits than its factorization.

11945869848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3843 (or 3833 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 63.

The spelling of 11945869848 in words is "eleven billion, nine hundred forty-five million, eight hundred sixty-nine thousand, eight hundred forty-eight".