7705968779 has 4 divisors (see below), whose sum is σ = 7710071760. Its totient is φ = 7701865800.

The previous prime is 7705968731. The next prime is 7705968817. The reversal of 7705968779 is 9778695077.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9778695077 = 173 ⋅56524249.

It is a cyclic number.

It is not a de Polignac number, because 7705968779 - 2²⁴ = 7689191563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7705968379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2048672 + ... + 2052429.

It is an arithmetic number, because the mean of its divisors is an integer number (1927517940).

Almost surely, 2^7705968779 is an apocalyptic number.

7705968779 is a deficient number, since it is larger than the sum of its proper divisors (4102981).

7705968779 is a wasteful number, since it uses less digits than its factorization.

7705968779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102980.

The product of its (nonzero) digits is 46675440, while the sum is 65.

The square root of 7705968779 is about 87783.6475603515. The cubic root of 7705968779 is about 1975.1909256432.

The spelling of 7705968779 in words is "seven billion, seven hundred five million, nine hundred sixty-eight thousand, seven hundred seventy-nine".