227440063644 has 12 divisors (see below), whose sum is σ = 530693481864. Its totient is φ = 75813354544.

The previous prime is 227440063621. The next prime is 227440063651. The reversal of 227440063644 is 446360044722.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 227440063596 and 227440063605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9476669307 + ... + 9476669330.

It is an arithmetic number, because the mean of its divisors is an integer number (44224456822).

Almost surely, 2^227440063644 is an apocalyptic number.

It is an amenable number.

227440063644 is an abundant number, since it is smaller than the sum of its proper divisors (303253418220).

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

227440063644 is a wasteful number, since it uses less digits than its factorization.

227440063644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18953338644 (or 18953338642 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 42.

The spelling of 227440063644 in words is "two hundred twenty-seven billion, four hundred forty million, sixty-three thousand, six hundred forty-four".