20413515241409 has 2 divisors, whose sum is σ = 20413515241410. Its totient is φ = 20413515241408.

The previous prime is 20413515241373. The next prime is 20413515241477. The reversal of 20413515241409 is 90414251531402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16753238397184 + 3660276844225 = 4093072^2 + 1913185^2 .

It is a cyclic number.

It is not a de Polignac number, because 20413515241409 - 2¹⁶ = 20413515175873 is a prime.

It is a super-2 number, since 2×20413515241409² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20413515240409) 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, 10206757620704 + 10206757620705.

It is an arithmetic number, because the mean of its divisors is an integer number (10206757620705).

Almost surely, 2^{20413515241409} is an apocalyptic number.

It is an amenable number.

20413515241409 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413515241409 is an equidigital number, since it uses as much as digits as its factorization.

20413515241409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 20413515241409 in words is "twenty trillion, four hundred thirteen billion, five hundred fifteen million, two hundred forty-one thousand, four hundred nine".