766867668 has 24 divisors (see below), whose sum is σ = 2044980672. Its totient is φ = 219105024.

The previous prime is 766867667. The next prime is 766867693. The reversal of 766867668 is 866768667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766867667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4564605 + ... + 4564772.

It is an arithmetic number, because the mean of its divisors is an integer number (85207528).

Almost surely, 2^766867668 is an apocalyptic number.

It is an amenable number.

766867668 is an abundant number, since it is smaller than the sum of its proper divisors (1278113004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

766867668 is a wasteful number, since it uses less digits than its factorization.

766867668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9129391 (or 9129389 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 60.

The square root of 766867668 is about 27692.3756294038. The cubic root of 766867668 is about 915.3211044165.

Subtracting 766867668 from its reverse (866768667), we obtain a palindrome (99900999).

The spelling of 766867668 in words is "seven hundred sixty-six million, eight hundred sixty-seven thousand, six hundred sixty-eight".