27334801858181 has 2 divisors, whose sum is σ = 27334801858182. Its totient is φ = 27334801858180.

The previous prime is 27334801858073. The next prime is 27334801858291. The reversal of 27334801858181 is 18185810843372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21395564785156 + 5939237073025 = 4625534^2 + 2437055^2 .

It is a cyclic number.

It is not a de Polignac number, because 27334801858181 - 2¹⁴ = 27334801841797 is a prime.

It is a super-2 number, since 2×27334801858181² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27334801858181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27334801858381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13667400929090 + 13667400929091.

It is an arithmetic number, because the mean of its divisors is an integer number (13667400929091).

Almost surely, 2^{27334801858181} is an apocalyptic number.

It is an amenable number.

27334801858181 is a deficient number, since it is larger than the sum of its proper divisors (1).

27334801858181 is an equidigital number, since it uses as much as digits as its factorization.

27334801858181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10321920, while the sum is 59.

The spelling of 27334801858181 in words is "twenty-seven trillion, three hundred thirty-four billion, eight hundred one million, eight hundred fifty-eight thousand, one hundred eighty-one".