284490866867 has 2 divisors, whose sum is σ = 284490866868. Its totient is φ = 284490866866.

The previous prime is 284490866857. The next prime is 284490866887. The reversal of 284490866867 is 768668094482.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-284490866867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 284490866797 and 284490866806.

It is not a weakly prime, because it can be changed into another prime (284490866857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142245433433 + 142245433434.

It is an arithmetic number, because the mean of its divisors is an integer number (142245433434).

Almost surely, 2^284490866867 is an apocalyptic number.

284490866867 is a deficient number, since it is larger than the sum of its proper divisors (1).

284490866867 is an equidigital number, since it uses as much as digits as its factorization.

284490866867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 222953472, while the sum is 68.

The spelling of 284490866867 in words is "two hundred eighty-four billion, four hundred ninety million, eight hundred sixty-six thousand, eight hundred sixty-seven".