223918204918 has 8 divisors (see below), whose sum is σ = 335907744912. Its totient is φ = 111948956616.

The previous prime is 223918204897. The next prime is 223918204963. The reversal of 223918204918 is 819402819322.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5045305 + ... + 5089492.

It is an arithmetic number, because the mean of its divisors is an integer number (41988468114).

Almost surely, 2^223918204918 is an apocalyptic number.

223918204918 is a deficient number, since it is larger than the sum of its proper divisors (111989539994).

223918204918 is a wasteful number, since it uses less digits than its factorization.

223918204918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10145846.

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 223918204918 in words is "two hundred twenty-three billion, nine hundred eighteen million, two hundred four thousand, nine hundred eighteen".