219994940823 has 16 divisors (see below), whose sum is σ = 335562658560. Its totient is φ = 125586792576.

The previous prime is 219994940801. The next prime is 219994940827. The reversal of 219994940823 is 328049499912.

It is not a de Polignac number, because 219994940823 - 2⁵ = 219994940791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219994940827) 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, 5170065 + ... + 5212442.

It is an arithmetic number, because the mean of its divisors is an integer number (20972666160).

Almost surely, 2^219994940823 is an apocalyptic number.

219994940823 is a deficient number, since it is larger than the sum of its proper divisors (115567717737).

219994940823 is a wasteful number, since it uses less digits than its factorization.

219994940823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10383526.

The product of its (nonzero) digits is 10077696, while the sum is 60.

The spelling of 219994940823 in words is "two hundred nineteen billion, nine hundred ninety-four million, nine hundred forty thousand, eight hundred twenty-three".