77268568 has 16 divisors (see below), whose sum is σ = 156023280. Its totient is φ = 35662368.

The previous prime is 77268563. The next prime is 77268589. The reversal of 77268568 is 86586277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77268563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371380 + ... + 371587.

It is an arithmetic number, because the mean of its divisors is an integer number (9751455).

Almost surely, 2^77268568 is an apocalyptic number.

It is an amenable number.

77268568 is an abundant number, since it is smaller than the sum of its proper divisors (78754712).

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

77268568 is a wasteful number, since it uses less digits than its factorization.

77268568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742986 (or 742982 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 49.

The square root of 77268568 is about 8790.2541487718. The cubic root of 77268568 is about 425.9261335334.

The spelling of 77268568 in words is "seventy-seven million, two hundred sixty-eight thousand, five hundred sixty-eight".