180221349047 has 2 divisors, whose sum is σ = 180221349048. Its totient is φ = 180221349046.

The previous prime is 180221349037. The next prime is 180221349103. The reversal of 180221349047 is 740943122081.

It is a weak prime.

It is an emirp because it is prime and its reverse (740943122081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 180221349047 - 2¹² = 180221344951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 180221348995 and 180221349013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180221349037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90110674523 + 90110674524.

It is an arithmetic number, because the mean of its divisors is an integer number (90110674524).

Almost surely, 2^180221349047 is an apocalyptic number.

180221349047 is a deficient number, since it is larger than the sum of its proper divisors (1).

180221349047 is an equidigital number, since it uses as much as digits as its factorization.

180221349047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 180221349047 in words is "one hundred eighty billion, two hundred twenty-one million, three hundred forty-nine thousand, forty-seven".