227912215804 has 96 divisors (see below), whose sum is σ = 498989582336. Its totient is φ = 88681858560.

The previous prime is 227912215753. The next prime is 227912215819. The reversal of 227912215804 is 408512219722.

It is a super-2 number, since 2×227912215804² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 9740239 + ... + 9763609.

Almost surely, 2^227912215804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227912215804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249494791168).

227912215804 is an abundant number, since it is smaller than the sum of its proper divisors (271077366532).

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

227912215804 is a wasteful number, since it uses less digits than its factorization.

227912215804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23835 (or 23833 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 227912215804 in words is "two hundred twenty-seven billion, nine hundred twelve million, two hundred fifteen thousand, eight hundred four".