7769868689677 has 4 divisors (see below), whose sum is σ = 7771810675356. Its totient is φ = 7767926704000.

The previous prime is 7769868689659. The next prime is 7769868689729.

It is a happy number.

7769868689677 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3911103477801 + 3858765211876 = 1977651^2 + 1964374^2 .

It is a cyclic number.

It is not a de Polignac number, because 7769868689677 - 2¹⁵ = 7769868656909 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 (7769868689777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970986838 + ... + 970994839.

It is an arithmetic number, because the mean of its divisors is an integer number (1942952668839).

Almost surely, 2^{7769868689677} is an apocalyptic number.

It is an amenable number.

7769868689677 is a deficient number, since it is larger than the sum of its proper divisors (1941985679).

7769868689677 is a wasteful number, since it uses less digits than its factorization.

7769868689677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941985678.

The product of its digits is 129048256512, while the sum is 94.

The spelling of 7769868689677 in words is "seven trillion, seven hundred sixty-nine billion, eight hundred sixty-eight million, six hundred eighty-nine thousand, six hundred seventy-seven".