227812781712 has 40 divisors (see below), whose sum is σ = 589057901056. Its totient is φ = 75867716736.

The previous prime is 227812781711. The next prime is 227812781743. The reversal of 227812781712 is 217187218722.

227812781712 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×227812781712² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (227812781711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2130943 + ... + 2235294.

Almost surely, 2^227812781712 is an apocalyptic number.

It is an amenable number.

227812781712 is an abundant number, since it is smaller than the sum of its proper divisors (361245119344).

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

227812781712 is a wasteful number, since it uses less digits than its factorization.

227812781712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367335 (or 4367329 counting only the distinct ones).

The product of its digits is 351232, while the sum is 48.

The spelling of 227812781712 in words is "two hundred twenty-seven billion, eight hundred twelve million, seven hundred eighty-one thousand, seven hundred twelve".