12019509228264 has 128 divisors (see below), whose sum is σ = 32012507750400. Its totient is φ = 3749930553600.

The previous prime is 12019509228211. The next prime is 12019509228277. The reversal of 12019509228264 is 46282290591021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21042097 + ... + 21605759.

It is an arithmetic number, because the mean of its divisors is an integer number (250097716800).

Almost surely, 2^{12019509228264} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12019509228264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16006253875200).

12019509228264 is an abundant number, since it is smaller than the sum of its proper divisors (19992998522136).

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

12019509228264 is a wasteful number, since it uses less digits than its factorization.

12019509228264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564255 (or 564251 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 12019509228264 in words is "twelve trillion, nineteen billion, five hundred nine million, two hundred twenty-eight thousand, two hundred sixty-four".