404040401051489 has 2 divisors, whose sum is σ = 404040401051490. Its totient is φ = 404040401051488.

The previous prime is 404040401051461. The next prime is 404040401051509. The reversal of 404040401051489 is 984150104040404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 402600533048464 + 1439868003025 = 20064908^2 + 1199945^2 .

It is a cyclic number.

It is not a de Polignac number, because 404040401051489 - 2⁸ = 404040401051233 is a prime.

It is not a weakly prime, because it can be changed into another prime (404040401051449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202020200525744 + 202020200525745.

It is an arithmetic number, because the mean of its divisors is an integer number (202020200525745).

Almost surely, 2^{404040401051489} is an apocalyptic number.

It is an amenable number.

404040401051489 is a deficient number, since it is larger than the sum of its proper divisors (1).

404040401051489 is an equidigital number, since it uses as much as digits as its factorization.

404040401051489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 404040401051489 in words is "four hundred four trillion, forty billion, four hundred one million, fifty-one thousand, four hundred eighty-nine".