219168038994 has 16 divisors (see below), whose sum is σ = 453451115520. Its totient is φ = 70536840080.

The previous prime is 219168038959. The next prime is 219168039037. The reversal of 219168038994 is 499830861912.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 629793042 + ... + 629793389.

It is an arithmetic number, because the mean of its divisors is an integer number (28340694720).

Almost surely, 2^219168038994 is an apocalyptic number.

219168038994 is an abundant number, since it is smaller than the sum of its proper divisors (234283076526).

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

219168038994 is a wasteful number, since it uses less digits than its factorization.

219168038994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259586465.

The product of its (nonzero) digits is 6718464, while the sum is 60.

The spelling of 219168038994 in words is "two hundred nineteen billion, one hundred sixty-eight million, thirty-eight thousand, nine hundred ninety-four".