402284135609 has 2 divisors, whose sum is σ = 402284135610. Its totient is φ = 402284135608.

The previous prime is 402284135599. The next prime is 402284135651. The reversal of 402284135609 is 906531482204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400946039209 + 1338096400 = 633203^2 + 36580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402284135609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402284135609.

It is not a weakly prime, because it can be changed into another prime (402284131609) 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, 201142067804 + 201142067805.

It is an arithmetic number, because the mean of its divisors is an integer number (201142067805).

Almost surely, 2^402284135609 is an apocalyptic number.

It is an amenable number.

402284135609 is a deficient number, since it is larger than the sum of its proper divisors (1).

402284135609 is an equidigital number, since it uses as much as digits as its factorization.

402284135609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 402284135609 in words is "four hundred two billion, two hundred eighty-four million, one hundred thirty-five thousand, six hundred nine".