7805780680145 has 8 divisors (see below), whose sum is σ = 10705070647104. Its totient is φ = 5352535323504.

The previous prime is 7805780680097. The next prime is 7805780680153. The reversal of 7805780680145 is 5410860875087.

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 7805780680145 - 2¹⁶ = 7805780614609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 111511152539 + ... + 111511152608.

It is an arithmetic number, because the mean of its divisors is an integer number (1338133830888).

Almost surely, 2^{7805780680145} is an apocalyptic number.

It is an amenable number.

7805780680145 is a deficient number, since it is larger than the sum of its proper divisors (2899289966959).

7805780680145 is a wasteful number, since it uses less digits than its factorization.

7805780680145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223022305159.

The product of its (nonzero) digits is 15052800, while the sum is 59.

The spelling of 7805780680145 in words is "seven trillion, eight hundred five billion, seven hundred eighty million, six hundred eighty thousand, one hundred forty-five".