38511036409 has 2 divisors, whose sum is σ = 38511036410. Its totient is φ = 38511036408.

The previous prime is 38511036379. The next prime is 38511036413. The reversal of 38511036409 is 90463011583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38123734009 + 387302400 = 195253^2 + 19680^2 .

It is a cyclic number.

It is not a de Polignac number, because 38511036409 - 2⁹ = 38511035897 is a prime.

It is not a weakly prime, because it can be changed into another prime (38511036439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19255518204 + 19255518205.

It is an arithmetic number, because the mean of its divisors is an integer number (19255518205).

Almost surely, 2^38511036409 is an apocalyptic number.

It is an amenable number.

38511036409 is a deficient number, since it is larger than the sum of its proper divisors (1).

38511036409 is an equidigital number, since it uses as much as digits as its factorization.

38511036409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 38511036409 in words is "thirty-eight billion, five hundred eleven million, thirty-six thousand, four hundred nine".