1827038822381 has 2 divisors, whose sum is σ = 1827038822382. Its totient is φ = 1827038822380.

The previous prime is 1827038822363. The next prime is 1827038822423. The reversal of 1827038822381 is 1832288307281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1251397958281 + 575640864100 = 1118659^2 + 758710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1827038822381 is a prime.

It is a super-2 number, since 2×1827038822381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1827038822341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 913519411190 + 913519411191.

It is an arithmetic number, because the mean of its divisors is an integer number (913519411191).

Almost surely, 2^{1827038822381} is an apocalyptic number.

It is an amenable number.

1827038822381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1827038822381 is an equidigital number, since it uses as much as digits as its factorization.

1827038822381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2064384, while the sum is 53.

The spelling of 1827038822381 in words is "one trillion, eight hundred twenty-seven billion, thirty-eight million, eight hundred twenty-two thousand, three hundred eighty-one".