768216536 has 16 divisors (see below), whose sum is σ = 1525136040. Its totient is φ = 361513600.

The previous prime is 768216517. The next prime is 768216541. The reversal of 768216536 is 635612867.

768216536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2824190 + ... + 2824461.

Almost surely, 2^768216536 is an apocalyptic number.

It is an amenable number.

768216536 is a deficient number, since it is larger than the sum of its proper divisors (756919504).

768216536 is a wasteful number, since it uses less digits than its factorization.

768216536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5648674 (or 5648670 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 768216536 is about 27716.7194306974. The cubic root of 768216536 is about 915.8574525674.

The spelling of 768216536 in words is "seven hundred sixty-eight million, two hundred sixteen thousand, five hundred thirty-six".