38387523727349 has 2 divisors, whose sum is σ = 38387523727350. Its totient is φ = 38387523727348.

The previous prime is 38387523727309. The next prime is 38387523727363. The reversal of 38387523727349 is 94372732578383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29367652771249 + 9019870956100 = 5419193^2 + 3003310^2 .

It is a cyclic number.

It is not a de Polignac number, because 38387523727349 - 2¹⁶ = 38387523661813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38387523727309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19193761863674 + 19193761863675.

It is an arithmetic number, because the mean of its divisors is an integer number (19193761863675).

Almost surely, 2^{38387523727349} is an apocalyptic number.

It is an amenable number.

38387523727349 is a deficient number, since it is larger than the sum of its proper divisors (1).

38387523727349 is an equidigital number, since it uses as much as digits as its factorization.

38387523727349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1280240640, while the sum is 71.

The spelling of 38387523727349 in words is "thirty-eight trillion, three hundred eighty-seven billion, five hundred twenty-three million, seven hundred twenty-seven thousand, three hundred forty-nine".