771068680 has 32 divisors (see below), whose sum is σ = 1738742040. Its totient is φ = 307745280.

The previous prime is 771068663. The next prime is 771068681. The reversal of 771068680 is 86860177.

771068680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 559133316 + 211935364 = 23646^2 + 14558^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (771068681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2811 + ... + 39370.

Almost surely, 2^771068680 is an apocalyptic number.

It is an amenable number.

771068680 is an abundant number, since it is smaller than the sum of its proper divisors (967673360).

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

771068680 is a wasteful number, since it uses less digits than its factorization.

771068680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42649 (or 42645 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 771068680 is about 27768.1234511805. The cubic root of 771068680 is about 916.9894820425.

The spelling of 771068680 in words is "seven hundred seventy-one million, sixty-eight thousand, six hundred eighty".