282081384457 has 4 divisors (see below), whose sum is σ = 282168963396. Its totient is φ = 281993805520.

The previous prime is 282081384433. The next prime is 282081384461. The reversal of 282081384457 is 754483180282.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 129027513616 + 153053870841 = 359204^2 + 391221^2 .

It is a cyclic number.

It is not a de Polignac number, because 282081384457 - 2¹⁹ = 282080860169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (282081384427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43784638 + ... + 43791079.

It is an arithmetic number, because the mean of its divisors is an integer number (70542240849).

Almost surely, 2^282081384457 is an apocalyptic number.

It is an amenable number.

282081384457 is a deficient number, since it is larger than the sum of its proper divisors (87578939).

282081384457 is an equidigital number, since it uses as much as digits as its factorization.

282081384457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87578938.

The product of its (nonzero) digits is 3440640, while the sum is 52.

The spelling of 282081384457 in words is "two hundred eighty-two billion, eighty-one million, three hundred eighty-four thousand, four hundred fifty-seven".