766737668 has 12 divisors (see below), whose sum is σ = 1345846992. Its totient is φ = 382209960.

The previous prime is 766737667. The next prime is 766737701. The reversal of 766737668 is 866737667.

It is not an unprimeable number, because it can be changed into a prime (766737661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288230 + ... + 290877.

It is an arithmetic number, because the mean of its divisors is an integer number (112153916).

Almost surely, 2^766737668 is an apocalyptic number.

It is an amenable number.

766737668 is a deficient number, since it is larger than the sum of its proper divisors (579109324).

766737668 is a wasteful number, since it uses less digits than its factorization.

766737668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579442 (or 579440 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 56.

The square root of 766737668 is about 27690.0283134561. The cubic root of 766737668 is about 915.2693795131.

Subtracting 766737668 from its reverse (866737667), we obtain a palindrome (99999999).

The spelling of 766737668 in words is "seven hundred sixty-six million, seven hundred thirty-seven thousand, six hundred sixty-eight".