38194659329 has 2 divisors, whose sum is σ = 38194659330. Its totient is φ = 38194659328.

The previous prime is 38194659319. The next prime is 38194659341. The reversal of 38194659329 is 92395649183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20651127025 + 17543532304 = 143705^2 + 132452^2 .

It is a cyclic number.

It is not a de Polignac number, because 38194659329 - 2²⁰ = 38193610753 is a prime.

It is not a weakly prime, because it can be changed into another prime (38194659319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19097329664 + 19097329665.

It is an arithmetic number, because the mean of its divisors is an integer number (19097329665).

Almost surely, 2^38194659329 is an apocalyptic number.

It is an amenable number.

38194659329 is a deficient number, since it is larger than the sum of its proper divisors (1).

38194659329 is an equidigital number, since it uses as much as digits as its factorization.

38194659329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12597120, while the sum is 59.

The spelling of 38194659329 in words is "thirty-eight billion, one hundred ninety-four million, six hundred fifty-nine thousand, three hundred twenty-nine".