7769848489678 has 16 divisors (see below), whose sum is σ = 12714389565696. Its totient is φ = 3531723747640.

The previous prime is 7769848489651. The next prime is 7769848489693. The reversal of 7769848489678 is 8769848489677.

It is a junction number, because it is equal to n+sod(n) for n = 7769848489592 and 7769848489601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2018925 + ... + 4428967.

It is an arithmetic number, because the mean of its divisors is an integer number (794649347856).

Almost surely, 2^{7769848489678} is an apocalyptic number.

7769848489678 is a deficient number, since it is larger than the sum of its proper divisors (4944541076018).

7769848489678 is a wasteful number, since it uses less digits than its factorization.

7769848489678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556599.

The product of its digits is 65548320768, while the sum is 91.

Subtracting 7769848489678 from its reverse (8769848489677), we obtain a palindrome (999999999999).

The spelling of 7769848489678 in words is "seven trillion, seven hundred sixty-nine billion, eight hundred forty-eight million, four hundred eighty-nine thousand, six hundred seventy-eight".