219219931793 has 16 divisors (see below), whose sum is σ = 239190167040. Its totient is φ = 200148537600.

The previous prime is 219219931781. The next prime is 219219931811. The reversal of 219219931793 is 397139912912.

It is a cyclic number.

It is not a de Polignac number, because 219219931793 - 2³⁰ = 218146189969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (219219921793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630230 + ... + 914127.

It is an arithmetic number, because the mean of its divisors is an integer number (14949385440).

Almost surely, 2^219219931793 is an apocalyptic number.

It is an amenable number.

219219931793 is a deficient number, since it is larger than the sum of its proper divisors (19970235247).

219219931793 is a wasteful number, since it uses less digits than its factorization.

219219931793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544648.

The product of its digits is 1653372, while the sum is 56.

The spelling of 219219931793 in words is "two hundred nineteen billion, two hundred nineteen million, nine hundred thirty-one thousand, seven hundred ninety-three".