381158736008381 has 2 divisors, whose sum is σ = 381158736008382. Its totient is φ = 381158736008380.

The previous prime is 381158736008359. The next prime is 381158736008563. The reversal of 381158736008381 is 183800637851183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197609510743225 + 183549225265156 = 14057365^2 + 13548034^2 .

It is an emirp because it is prime and its reverse (183800637851183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 381158736008381 - 2²⁶ = 381158668899517 is a prime.

It is a super-2 number, since 2×381158736008381² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381158736007381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190579368004190 + 190579368004191.

It is an arithmetic number, because the mean of its divisors is an integer number (190579368004191).

Almost surely, 2^{381158736008381} is an apocalyptic number.

It is an amenable number.

381158736008381 is a deficient number, since it is larger than the sum of its proper divisors (1).

381158736008381 is an equidigital number, since it uses as much as digits as its factorization.

381158736008381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23224320, while the sum is 62.

The spelling of 381158736008381 in words is "three hundred eighty-one trillion, one hundred fifty-eight billion, seven hundred thirty-six million, eight thousand, three hundred eighty-one".