768668662 has 4 divisors (see below), whose sum is σ = 1153002996. Its totient is φ = 384334330.

The previous prime is 768668623. The next prime is 768668669. The reversal of 768668662 is 266866867.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768668669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192167164 + ... + 192167167.

It is an arithmetic number, because the mean of its divisors is an integer number (288250749).

Almost surely, 2^768668662 is an apocalyptic number.

768668662 is a deficient number, since it is larger than the sum of its proper divisors (384334334).

768668662 is a wasteful number, since it uses less digits than its factorization.

768668662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384334333.

The product of its digits is 6967296, while the sum is 55.

The square root of 768668662 is about 27724.8744271277. The cubic root of 768668662 is about 916.0370901821.

The spelling of 768668662 in words is "seven hundred sixty-eight million, six hundred sixty-eight thousand, six hundred sixty-two".