776691196677 has 12 divisors (see below), whose sum is σ = 1223877037344. Its totient is φ = 470721937320.

The previous prime is 776691196639. The next prime is 776691196739.

776691196677 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 776691196677 - 2⁶ = 776691196613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (776691196607) 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 11 ways as a sum of consecutive naturals, for example, 3922682713 + ... + 3922682910.

It is an arithmetic number, because the mean of its divisors is an integer number (101989753112).

Almost surely, 2^776691196677 is an apocalyptic number.

It is an amenable number.

776691196677 is a deficient number, since it is larger than the sum of its proper divisors (447185840667).

776691196677 is a wasteful number, since it uses less digits than its factorization.

776691196677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7845365640 (or 7845365637 counting only the distinct ones).

The product of its digits is 252047376, while the sum is 72.

The spelling of 776691196677 in words is "seven hundred seventy-six billion, six hundred ninety-one million, one hundred ninety-six thousand, six hundred seventy-seven".