223676487818 has 24 divisors (see below), whose sum is σ = 392912086500. Its totient is φ = 95217980928.

The previous prime is 223676487799. The next prime is 223676487829. The reversal of 223676487818 is 818784676322.

It can be written as a sum of positive squares in 2 ways, for example, as 223659947329 + 16540489 = 472927^2 + 4067^2 .

It is a super-2 number, since 2×223676487818² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7644503 + ... + 7673706.

Almost surely, 2^223676487818 is an apocalyptic number.

223676487818 is a deficient number, since it is larger than the sum of its proper divisors (169235598682).

223676487818 is a wasteful number, since it uses less digits than its factorization.

223676487818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15318374 (or 15318367 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 62.

The spelling of 223676487818 in words is "two hundred twenty-three billion, six hundred seventy-six million, four hundred eighty-seven thousand, eight hundred eighteen".