18052440779 has 2 divisors, whose sum is σ = 18052440780. Its totient is φ = 18052440778.

The previous prime is 18052440761. The next prime is 18052440881. The reversal of 18052440779 is 97704425081.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18052440779 is a prime.

It is not a weakly prime, because it can be changed into another prime (18052440719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9026220389 + 9026220390.

It is an arithmetic number, because the mean of its divisors is an integer number (9026220390).

Almost surely, 2^18052440779 is an apocalyptic number.

18052440779 is a deficient number, since it is larger than the sum of its proper divisors (1).

18052440779 is an equidigital number, since it uses as much as digits as its factorization.

18052440779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 18052440779 in words is "eighteen billion, fifty-two million, four hundred forty thousand, seven hundred seventy-nine".