447726828231 has 12 divisors (see below), whose sum is σ = 657677827560. Its totient is φ = 293425491600.

The previous prime is 447726828223. The next prime is 447726828239. The reversal of 447726828231 is 132828627744.

447726828231 is a `hidden beast` number, since 4 + 4 + 77 + 268 + 282 + 31 = 666.

It is an interprime number because it is at equal distance from previous prime (447726828223) and next prime (447726828239).

It is not a de Polignac number, because 447726828231 - 2³ = 447726828223 is a prime.

It is a super-2 number, since 2×447726828231² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447726828239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421587820 + ... + 421588881.

It is an arithmetic number, because the mean of its divisors is an integer number (54806485630).

Almost surely, 2^447726828231 is an apocalyptic number.

447726828231 is a deficient number, since it is larger than the sum of its proper divisors (209950999329).

447726828231 is a wasteful number, since it uses less digits than its factorization.

447726828231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843176766 (or 843176763 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 54.

The spelling of 447726828231 in words is "four hundred forty-seven billion, seven hundred twenty-six million, eight hundred twenty-eight thousand, two hundred thirty-one".