227428849791 has 96 divisors (see below), whose sum is σ = 401310743040. Its totient is φ = 127229525280.

The previous prime is 227428849787. The next prime is 227428849793. The reversal of 227428849791 is 197948824722.

227428849791 is a `hidden beast` number, since 2 + 27 + 42 + 88 + 497 + 9 + 1 = 666.

It is not a de Polignac number, because 227428849791 - 2² = 227428849787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227428849793) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 6054630 + ... + 6092076.

It is an arithmetic number, because the mean of its divisors is an integer number (4180320240).

Almost surely, 2^227428849791 is an apocalyptic number.

227428849791 is a deficient number, since it is larger than the sum of its proper divisors (173881893249).

227428849791 is a wasteful number, since it uses less digits than its factorization.

227428849791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37515 (or 37474 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 63.

The spelling of 227428849791 in words is "two hundred twenty-seven billion, four hundred twenty-eight million, eight hundred forty-nine thousand, seven hundred ninety-one".