38508927397 has 2 divisors, whose sum is σ = 38508927398. Its totient is φ = 38508927396.

The previous prime is 38508927337. The next prime is 38508927487. The reversal of 38508927397 is 79372980583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37841531841 + 667395556 = 194529^2 + 25834^2 .

It is a cyclic number.

It is not a de Polignac number, because 38508927397 - 2¹¹ = 38508925349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38508927337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19254463698 + 19254463699.

It is an arithmetic number, because the mean of its divisors is an integer number (19254463699).

Almost surely, 2^38508927397 is an apocalyptic number.

It is an amenable number.

38508927397 is a deficient number, since it is larger than the sum of its proper divisors (1).

38508927397 is an equidigital number, since it uses as much as digits as its factorization.

38508927397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 38508927397 in words is "thirty-eight billion, five hundred eight million, nine hundred twenty-seven thousand, three hundred ninety-seven".