38421207413 has 2 divisors, whose sum is σ = 38421207414. Its totient is φ = 38421207412.

The previous prime is 38421207403. The next prime is 38421207437. The reversal of 38421207413 is 31470212483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31709993329 + 6711214084 = 178073^2 + 81922^2 .

It is a cyclic number.

It is not a de Polignac number, because 38421207413 - 2¹⁰ = 38421206389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38421207403) 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, 19210603706 + 19210603707.

It is an arithmetic number, because the mean of its divisors is an integer number (19210603707).

Almost surely, 2^38421207413 is an apocalyptic number.

It is an amenable number.

38421207413 is a deficient number, since it is larger than the sum of its proper divisors (1).

38421207413 is an equidigital number, since it uses as much as digits as its factorization.

38421207413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 35.

Adding to 38421207413 its reverse (31470212483), we get a palindrome (69891419896).

The spelling of 38421207413 in words is "thirty-eight billion, four hundred twenty-one million, two hundred seven thousand, four hundred thirteen".