38365309626649 has 2 divisors, whose sum is σ = 38365309626650. Its totient is φ = 38365309626648.

The previous prime is 38365309626641. The next prime is 38365309626653. The reversal of 38365309626649 is 94662690356383.

38365309626649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30804498032400 + 7560811594249 = 5550180^2 + 2749693^2 .

It is a cyclic number.

It is not a de Polignac number, because 38365309626649 - 2³ = 38365309626641 is a prime.

It is not a weakly prime, because it can be changed into another prime (38365309626641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19182654813324 + 19182654813325.

It is an arithmetic number, because the mean of its divisors is an integer number (19182654813325).

Almost surely, 2^{38365309626649} is an apocalyptic number.

It is an amenable number.

38365309626649 is a deficient number, since it is larger than the sum of its proper divisors (1).

38365309626649 is an equidigital number, since it uses as much as digits as its factorization.

38365309626649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 906992640, while the sum is 70.

The spelling of 38365309626649 in words is "thirty-eight trillion, three hundred sixty-five billion, three hundred nine million, six hundred twenty-six thousand, six hundred forty-nine".