8361132361381 has 2 divisors, whose sum is σ = 8361132361382. Its totient is φ = 8361132361380.

The previous prime is 8361132361367. The next prime is 8361132361489. The reversal of 8361132361381 is 1831632311638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5733912804481 + 2627219556900 = 2394559^2 + 1620870^2 .

It is a cyclic number.

It is not a de Polignac number, because 8361132361381 - 2⁹ = 8361132360869 is a prime.

It is a super-2 number, since 2×8361132361381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8361132361331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4180566180690 + 4180566180691.

It is an arithmetic number, because the mean of its divisors is an integer number (4180566180691).

Almost surely, 2^{8361132361381} is an apocalyptic number.

It is an amenable number.

8361132361381 is a deficient number, since it is larger than the sum of its proper divisors (1).

8361132361381 is an equidigital number, since it uses as much as digits as its factorization.

8361132361381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 46.

The spelling of 8361132361381 in words is "eight trillion, three hundred sixty-one billion, one hundred thirty-two million, three hundred sixty-one thousand, three hundred eighty-one".