763640568 has 32 divisors (see below), whose sum is σ = 2121224400. Its totient is φ = 254546784.

The previous prime is 763640567. The next prime is 763640597. The reversal of 763640568 is 865046367.

763640568 is a `hidden beast` number, since 7 + 636 + 4 + 0 + 5 + 6 + 8 = 666.

763640568 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 not an unprimeable number, because it can be changed into a prime (763640567) 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, 1767471 + ... + 1767902.

Almost surely, 2^763640568 is an apocalyptic number.

It is an amenable number.

763640568 is an abundant number, since it is smaller than the sum of its proper divisors (1357583832).

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

763640568 is a wasteful number, since it uses less digits than its factorization.

763640568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535388 (or 3535378 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 763640568 is about 27634.0472605806. The cubic root of 763640568 is about 914.0353607038.

The spelling of 763640568 in words is "seven hundred sixty-three million, six hundred forty thousand, five hundred sixty-eight".