38905365413 has 2 divisors, whose sum is σ = 38905365414. Its totient is φ = 38905365412.

The previous prime is 38905365383. The next prime is 38905365427. The reversal of 38905365413 is 31456350983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38768428609 + 136936804 = 196897^2 + 11702^2 .

It is a cyclic number.

It is not a de Polignac number, because 38905365413 - 2¹² = 38905361317 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 (38905365493) 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, 19452682706 + 19452682707.

It is an arithmetic number, because the mean of its divisors is an integer number (19452682707).

Almost surely, 2^38905365413 is an apocalyptic number.

It is an amenable number.

38905365413 is a deficient number, since it is larger than the sum of its proper divisors (1).

38905365413 is an equidigital number, since it uses as much as digits as its factorization.

38905365413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 38905365413 in words is "thirty-eight billion, nine hundred five million, three hundred sixty-five thousand, four hundred thirteen".