2238217257856 has 32 divisors (see below), whose sum is σ = 4459058279280. Its totient is φ = 1119081062400.

The previous prime is 2238217257841. The next prime is 2238217257911. The reversal of 2238217257856 is 6587527128322.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 2238217257856.

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, 5615581 + ... + 6000931.

Almost surely, 2^{2238217257856} is an apocalyptic number.

It is an amenable number.

2238217257856 is a deficient number, since it is larger than the sum of its proper divisors (2220841021424).

2238217257856 is an equidigital number, since it uses as much as digits as its factorization.

2238217257856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430742 (or 430730 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 58.

The spelling of 2238217257856 in words is "two trillion, two hundred thirty-eight billion, two hundred seventeen million, two hundred fifty-seven thousand, eight hundred fifty-six".