38394690863 has 2 divisors, whose sum is σ = 38394690864. Its totient is φ = 38394690862.

The previous prime is 38394690827. The next prime is 38394690923. The reversal of 38394690863 is 36809649383.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38394690863 - 2⁶ = 38394690799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38394696863) 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, 19197345431 + 19197345432.

It is an arithmetic number, because the mean of its divisors is an integer number (19197345432).

Almost surely, 2^38394690863 is an apocalyptic number.

38394690863 is a deficient number, since it is larger than the sum of its proper divisors (1).

38394690863 is an equidigital number, since it uses as much as digits as its factorization.

38394690863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20155392, while the sum is 59.

The spelling of 38394690863 in words is "thirty-eight billion, three hundred ninety-four million, six hundred ninety thousand, eight hundred sixty-three".