226863638653018 has 8 divisors (see below), whose sum is σ = 348209305839648. Its totient is φ = 110793870039804.

The previous prime is 226863638653009. The next prime is 226863638653021. The reversal of 226863638653018 is 810356836368622.

It is a happy number.

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

It is a super-2 number, since 2×226863638653018² (a number of 30 digits) contains 22 as substring.

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, 1318974643246 + ... + 1318974643417.

It is an arithmetic number, because the mean of its divisors is an integer number (43526163229956).

Almost surely, 2^{226863638653018} is an apocalyptic number.

226863638653018 is a deficient number, since it is larger than the sum of its proper divisors (121345667186630).

226863638653018 is a wasteful number, since it uses less digits than its factorization.

226863638653018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637949286708.

The product of its (nonzero) digits is 358318080, while the sum is 67.

The spelling of 226863638653018 in words is "two hundred twenty-six trillion, eight hundred sixty-three billion, six hundred thirty-eight million, six hundred fifty-three thousand, eighteen".