18055787341 has 2 divisors, whose sum is σ = 18055787342. Its totient is φ = 18055787340.

The previous prime is 18055787297. The next prime is 18055787413. The reversal of 18055787341 is 14378755081.

Together with next prime (18055787413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13746390025 + 4309397316 = 117245^2 + 65646^2 .

It is a cyclic number.

It is not a de Polignac number, because 18055787341 - 2²⁵ = 18022232909 is a prime.

It is a super-2 number, since 2×18055787341² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18055787441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9027893670 + 9027893671.

It is an arithmetic number, because the mean of its divisors is an integer number (9027893671).

Almost surely, 2^18055787341 is an apocalyptic number.

It is an amenable number.

18055787341 is a deficient number, since it is larger than the sum of its proper divisors (1).

18055787341 is an equidigital number, since it uses as much as digits as its factorization.

18055787341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 18055787341 in words is "eighteen billion, fifty-five million, seven hundred eighty-seven thousand, three hundred forty-one".