382724351881 has 2 divisors, whose sum is σ = 382724351882. Its totient is φ = 382724351880.

The previous prime is 382724351869. The next prime is 382724351887. The reversal of 382724351881 is 188153427283.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291691807225 + 91032544656 = 540085^2 + 301716^2 .

It is a cyclic number.

It is not a de Polignac number, because 382724351881 - 2⁹ = 382724351369 is a prime.

It is a super-2 number, since 2×382724351881² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (382724351887) 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 as a sum of consecutive naturals, namely, 191362175940 + 191362175941.

It is an arithmetic number, because the mean of its divisors is an integer number (191362175941).

Almost surely, 2^382724351881 is an apocalyptic number.

It is an amenable number.

382724351881 is a deficient number, since it is larger than the sum of its proper divisors (1).

382724351881 is an equidigital number, since it uses as much as digits as its factorization.

382724351881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2580480, while the sum is 52.

The spelling of 382724351881 in words is "three hundred eighty-two billion, seven hundred twenty-four million, three hundred fifty-one thousand, eight hundred eighty-one".