405261001513 has 2 divisors, whose sum is σ = 405261001514. Its totient is φ = 405261001512.

The previous prime is 405261001487. The next prime is 405261001529. The reversal of 405261001513 is 315100162504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 404384071744 + 876929769 = 635912^2 + 29613^2 .

It is a cyclic number.

It is not a de Polignac number, because 405261001513 - 2²⁵ = 405227447081 is a prime.

It is not a weakly prime, because it can be changed into another prime (405261001573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202630500756 + 202630500757.

It is an arithmetic number, because the mean of its divisors is an integer number (202630500757).

Almost surely, 2^405261001513 is an apocalyptic number.

It is an amenable number.

405261001513 is a deficient number, since it is larger than the sum of its proper divisors (1).

405261001513 is an equidigital number, since it uses as much as digits as its factorization.

405261001513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 405261001513 in words is "four hundred five billion, two hundred sixty-one million, one thousand, five hundred thirteen".