38535263381 has 2 divisors, whose sum is σ = 38535263382. Its totient is φ = 38535263380.

The previous prime is 38535263353. The next prime is 38535263401. The reversal of 38535263381 is 18336253583.

38535263381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25169822500 + 13365440881 = 158650^2 + 115609^2 .

It is an emirp because it is prime and its reverse (18336253583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38535263381 - 2²² = 38531069077 is a prime.

It is a super-2 number, since 2×38535263381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38535263321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19267631690 + 19267631691.

It is an arithmetic number, because the mean of its divisors is an integer number (19267631691).

Almost surely, 2^38535263381 is an apocalyptic number.

It is an amenable number.

38535263381 is a deficient number, since it is larger than the sum of its proper divisors (1).

38535263381 is an equidigital number, since it uses as much as digits as its factorization.

38535263381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 47.

The spelling of 38535263381 in words is "thirty-eight billion, five hundred thirty-five million, two hundred sixty-three thousand, three hundred eighty-one".