11894705928 has 384 divisors, whose sum is σ = 40600627200. Its totient is φ = 3159917568.

The previous prime is 11894705923. The next prime is 11894705941. The reversal of 11894705928 is 82950749811.

It is a happy number.

11894705928 is a `hidden beast` number, since 1 + 1 + 8 + 9 + 47 + 0 + 592 + 8 = 666.

11894705928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11894705928² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11894705923) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 71225701 + ... + 71225867.

It is an arithmetic number, because the mean of its divisors is an integer number (105730800).

Almost surely, 2^11894705928 is an apocalyptic number.

11894705928 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 11894705928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20300313600).

11894705928 is an abundant number, since it is smaller than the sum of its proper divisors (28705921272).

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

11894705928 is a wasteful number, since it uses less digits than its factorization.

11894705928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The spelling of 11894705928 in words is "eleven billion, eight hundred ninety-four million, seven hundred five thousand, nine hundred twenty-eight".