180399784007 has 2 divisors, whose sum is σ = 180399784008. Its totient is φ = 180399784006.

The previous prime is 180399783947. The next prime is 180399784009. The reversal of 180399784007 is 700487993081.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180399784007 is a prime.

Together with 180399784009, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180399784009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90199892003 + 90199892004.

It is an arithmetic number, because the mean of its divisors is an integer number (90199892004).

Almost surely, 2^180399784007 is an apocalyptic number.

180399784007 is a deficient number, since it is larger than the sum of its proper divisors (1).

180399784007 is an equidigital number, since it uses as much as digits as its factorization.

180399784007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The spelling of 180399784007 in words is "one hundred eighty billion, three hundred ninety-nine million, seven hundred eighty-four thousand, seven".