38203047913 has 2 divisors, whose sum is σ = 38203047914. Its totient is φ = 38203047912.

The previous prime is 38203047893. The next prime is 38203047941. The reversal of 38203047913 is 31974030283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38106163264 + 96884649 = 195208^2 + 9843^2 .

It is a cyclic number.

It is not a de Polignac number, because 38203047913 - 2²¹ = 38200950761 is a prime.

It is not a weakly prime, because it can be changed into another prime (38203047013) 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, 19101523956 + 19101523957.

It is an arithmetic number, because the mean of its divisors is an integer number (19101523957).

Almost surely, 2^38203047913 is an apocalyptic number.

It is an amenable number.

38203047913 is a deficient number, since it is larger than the sum of its proper divisors (1).

38203047913 is an equidigital number, since it uses as much as digits as its factorization.

38203047913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 38203047913 in words is "thirty-eight billion, two hundred three million, forty-seven thousand, nine hundred thirteen".