180345918047 has 2 divisors, whose sum is σ = 180345918048. Its totient is φ = 180345918046.

The previous prime is 180345918041. The next prime is 180345918119. The reversal of 180345918047 is 740819543081.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180345918047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 180345917986 and 180345918004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180345918041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90172959023 + 90172959024.

It is an arithmetic number, because the mean of its divisors is an integer number (90172959024).

Almost surely, 2^180345918047 is an apocalyptic number.

180345918047 is a deficient number, since it is larger than the sum of its proper divisors (1).

180345918047 is an equidigital number, since it uses as much as digits as its factorization.

180345918047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 180345918047 in words is "one hundred eighty billion, three hundred forty-five million, nine hundred eighteen thousand, forty-seven".