1380780660217 has 8 divisors (see below), whose sum is σ = 1583076688256. Its totient is φ = 1179745044192.

The previous prime is 1380780660179. The next prime is 1380780660241. The reversal of 1380780660217 is 7120660870831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1380780660217 - 2²³ = 1380772271609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1380780664217) 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 in 7 ways as a sum of consecutive naturals, for example, 315100653 + ... + 315105034.

It is an arithmetic number, because the mean of its divisors is an integer number (197884586032).

Almost surely, 2^{1380780660217} is an apocalyptic number.

It is an amenable number.

1380780660217 is a deficient number, since it is larger than the sum of its proper divisors (202296028039).

1380780660217 is an equidigital number, since it uses as much as digits as its factorization.

1380780660217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630206007.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 1380780660217 in words is "one trillion, three hundred eighty billion, seven hundred eighty million, six hundred sixty thousand, two hundred seventeen".