774666666477 has 24 divisors (see below), whose sum is σ = 1220811359040. Its totient is φ = 469447068480.

The previous prime is 774666666467. The next prime is 774666666493.

774666666477 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 774666666477 - 2⁴ = 774666666461 is a prime.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774666666467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 588928 + ... + 1377014.

It is an arithmetic number, because the mean of its divisors is an integer number (50867139960).

Almost surely, 2^774666666477 is an apocalyptic number.

It is an amenable number.

774666666477 is a deficient number, since it is larger than the sum of its proper divisors (446144692563).

774666666477 is a wasteful number, since it uses less digits than its factorization.

774666666477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798033 (or 798030 counting only the distinct ones).

The product of its digits is 1792336896, while the sum is 72.

The spelling of 774666666477 in words is "seven hundred seventy-four billion, six hundred sixty-six million, six hundred sixty-six thousand, four hundred seventy-seven".