19284866664 has 64 divisors (see below), whose sum is σ = 56271974400. Its totient is φ = 5392726464.

The previous prime is 19284866651. The next prime is 19284866683. The reversal of 19284866664 is 46666848291.

It is a junction number, because it is equal to n+sod(n) for n = 19284866598 and 19284866607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1213284 + ... + 1229075.

It is an arithmetic number, because the mean of its divisors is an integer number (879249600).

Almost surely, 2^19284866664 is an apocalyptic number.

19284866664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19284866664 is an abundant number, since it is smaller than the sum of its proper divisors (36987107736).

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

19284866664 is a wasteful number, since it uses less digits than its factorization.

19284866664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442422 (or 2442418 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 60.

The spelling of 19284866664 in words is "nineteen billion, two hundred eighty-four million, eight hundred sixty-six thousand, six hundred sixty-four".