2780505530305 has 16 divisors (see below), whose sum is σ = 3452283506880. Its totient is φ = 2147314131648.

The previous prime is 2780505530293. The next prime is 2780505530311. The reversal of 2780505530305 is 5030355050872.

2780505530305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2780505530305 - 2⁴¹ = 581482274753 is a prime.

It is a super-2 number, since 2×2780505530305² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 916887 + ... + 2530156.

It is an arithmetic number, because the mean of its divisors is an integer number (215767719180).

Almost surely, 2^{2780505530305} is an apocalyptic number.

It is an amenable number.

2780505530305 is a deficient number, since it is larger than the sum of its proper divisors (671777976575).

2780505530305 is a wasteful number, since it uses less digits than its factorization.

2780505530305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452640.

The product of its (nonzero) digits is 630000, while the sum is 43.

The spelling of 2780505530305 in words is "two trillion, seven hundred eighty billion, five hundred five million, five hundred thirty thousand, three hundred five".