776487668 has 24 divisors (see below), whose sum is σ = 1560407520. Its totient is φ = 334372320.

The previous prime is 776487653. The next prime is 776487671. The reversal of 776487668 is 866784677.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463571 + ... + 465242.

It is an arithmetic number, because the mean of its divisors is an integer number (65016980).

Almost surely, 2^776487668 is an apocalyptic number.

It is an amenable number.

776487668 is an abundant number, since it is smaller than the sum of its proper divisors (783919852).

776487668 is a wasteful number, since it uses less digits than its factorization.

776487668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928847 (or 928845 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 59.

The square root of 776487668 is about 27865.5283100823. The cubic root of 776487668 is about 919.1326371511.

The spelling of 776487668 in words is "seven hundred seventy-six million, four hundred eighty-seven thousand, six hundred sixty-eight".