7779042535709 has 16 divisors (see below), whose sum is σ = 8337941044992. Its totient is φ = 7238596387968.

The previous prime is 7779042535687. The next prime is 7779042535727. The reversal of 7779042535709 is 9075352409777.

It is a cyclic number.

It is not a de Polignac number, because 7779042535709 - 2¹² = 7779042531613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7779042535729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4802432 + ... + 6214614.

It is an arithmetic number, because the mean of its divisors is an integer number (521121315312).

Almost surely, 2^{7779042535709} is an apocalyptic number.

It is an amenable number.

7779042535709 is a deficient number, since it is larger than the sum of its proper divisors (558898509283).

7779042535709 is a wasteful number, since it uses less digits than its factorization.

7779042535709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418716.

The product of its (nonzero) digits is 116688600, while the sum is 65.

The spelling of 7779042535709 in words is "seven trillion, seven hundred seventy-nine billion, forty-two million, five hundred thirty-five thousand, seven hundred nine".