38639462413 has 2 divisors, whose sum is σ = 38639462414. Its totient is φ = 38639462412.

The previous prime is 38639462383. The next prime is 38639462417. The reversal of 38639462413 is 31426493683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38354088964 + 285373449 = 195842^2 + 16893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38639462413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38639462417) 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, 19319731206 + 19319731207.

It is an arithmetic number, because the mean of its divisors is an integer number (19319731207).

Almost surely, 2^38639462413 is an apocalyptic number.

It is an amenable number.

38639462413 is a deficient number, since it is larger than the sum of its proper divisors (1).

38639462413 is an equidigital number, since it uses as much as digits as its factorization.

38639462413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 49.

The spelling of 38639462413 in words is "thirty-eight billion, six hundred thirty-nine million, four hundred sixty-two thousand, four hundred thirteen".