382428818181 has 16 divisors (see below), whose sum is σ = 566576113600. Its totient is φ = 254945839824.

The previous prime is 382428818147. The next prime is 382428818201. The reversal of 382428818181 is 181818824283.

It is a happy number.

382428818181 is a `hidden beast` number, since 38 + 2 + 428 + 8 + 1 + 8 + 181 = 666.

It is not a de Polignac number, because 382428818181 - 2⁷ = 382428818053 is a prime.

It is a super-2 number, since 2×382428818181² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

382428818181 is a modest number, since divided by 818181 gives 382428 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382428818281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 995655 + ... + 1325211.

It is an arithmetic number, because the mean of its divisors is an integer number (35411007100).

Almost surely, 2^382428818181 is an apocalyptic number.

It is an amenable number.

382428818181 is a deficient number, since it is larger than the sum of its proper divisors (184147295419).

382428818181 is a wasteful number, since it uses less digits than its factorization.

382428818181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372545 (or 372539 counting only the distinct ones).

The product of its digits is 1572864, while the sum is 54.

The spelling of 382428818181 in words is "three hundred eighty-two billion, four hundred twenty-eight million, eight hundred eighteen thousand, one hundred eighty-one".