38394813671 has 2 divisors, whose sum is σ = 38394813672. Its totient is φ = 38394813670.

The previous prime is 38394813641. The next prime is 38394813713. The reversal of 38394813671 is 17631849383.

It is a weak prime.

It is an emirp because it is prime and its reverse (17631849383) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38394813671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38394813641) 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, 19197406835 + 19197406836.

It is an arithmetic number, because the mean of its divisors is an integer number (19197406836).

Almost surely, 2^38394813671 is an apocalyptic number.

38394813671 is a deficient number, since it is larger than the sum of its proper divisors (1).

38394813671 is an equidigital number, since it uses as much as digits as its factorization.

38394813671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 53.

The spelling of 38394813671 in words is "thirty-eight billion, three hundred ninety-four million, eight hundred thirteen thousand, six hundred seventy-one".