19683218368 has 56 divisors (see below), whose sum is σ = 43984249344. Its totient is φ = 8658297600.

The previous prime is 19683218339. The next prime is 19683218411. The reversal of 19683218368 is 86381238691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429130 + ... + 472777.

It is an arithmetic number, because the mean of its divisors is an integer number (785433024).

Almost surely, 2^19683218368 is an apocalyptic number.

It is an amenable number.

19683218368 is an abundant number, since it is smaller than the sum of its proper divisors (24301030976).

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

19683218368 is a wasteful number, since it uses less digits than its factorization.

19683218368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901961 (or 901951 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 55.

The spelling of 19683218368 in words is "nineteen billion, six hundred eighty-three million, two hundred eighteen thousand, three hundred sixty-eight".