18480324077 has 2 divisors, whose sum is σ = 18480324078. Its totient is φ = 18480324076.

The previous prime is 18480324067. The next prime is 18480324139. The reversal of 18480324077 is 77042308481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13403619076 + 5076705001 = 115774^2 + 71251^2 .

It is an emirp because it is prime and its reverse (77042308481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18480324077 - 2¹⁴ = 18480307693 is a prime.

It is a super-3 number, since 3×18480324077³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18480324017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9240162038 + 9240162039.

It is an arithmetic number, because the mean of its divisors is an integer number (9240162039).

Almost surely, 2^18480324077 is an apocalyptic number.

It is an amenable number.

18480324077 is a deficient number, since it is larger than the sum of its proper divisors (1).

18480324077 is an equidigital number, since it uses as much as digits as its factorization.

18480324077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 18480324077 in words is "eighteen billion, four hundred eighty million, three hundred twenty-four thousand, seventy-seven".