402604464089 has 2 divisors, whose sum is σ = 402604464090. Its totient is φ = 402604464088.

The previous prime is 402604464043. The next prime is 402604464107. The reversal of 402604464089 is 980464406204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 266970622864 + 135633841225 = 516692^2 + 368285^2 .

It is a cyclic number.

It is not a de Polignac number, because 402604464089 - 2²⁴ = 402587686873 is a prime.

It is not a weakly prime, because it can be changed into another prime (402604404089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201302232044 + 201302232045.

It is an arithmetic number, because the mean of its divisors is an integer number (201302232045).

Almost surely, 2^402604464089 is an apocalyptic number.

It is an amenable number.

402604464089 is a deficient number, since it is larger than the sum of its proper divisors (1).

402604464089 is an equidigital number, since it uses as much as digits as its factorization.

402604464089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1327104, while the sum is 47.

The spelling of 402604464089 in words is "four hundred two billion, six hundred four million, four hundred sixty-four thousand, eighty-nine".