766925668 has 6 divisors (see below), whose sum is σ = 1342119926. Its totient is φ = 383462832.

The previous prime is 766925659. The next prime is 766925693. The reversal of 766925668 is 866529667.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 510669604 + 256256064 = 22598^2 + 16008^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 95865705 + ... + 95865712.

Almost surely, 2^766925668 is an apocalyptic number.

It is an amenable number.

766925668 is a deficient number, since it is larger than the sum of its proper divisors (575194258).

766925668 is a wasteful number, since it uses less digits than its factorization.

766925668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191731421 (or 191731419 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 55.

The square root of 766925668 is about 27693.4228292568. The cubic root of 766925668 is about 915.3441797953.

The spelling of 766925668 in words is "seven hundred sixty-six million, nine hundred twenty-five thousand, six hundred sixty-eight".