763643680808 has 16 divisors (see below), whose sum is σ = 1458847598580. Its totient is φ = 374617654528.

The previous prime is 763643680799. The next prime is 763643680829. The reversal of 763643680808 is 808086346367.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 758191630564 + 5452050244 = 870742^2 + 73838^2 .

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 900522785 + ... + 900523632.

Almost surely, 2^763643680808 is an apocalyptic number.

It is an amenable number.

763643680808 is a deficient number, since it is larger than the sum of its proper divisors (695203917772).

763643680808 is a wasteful number, since it uses less digits than its factorization.

763643680808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801046476 (or 1801046472 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 59.

The spelling of 763643680808 in words is "seven hundred sixty-three billion, six hundred forty-three million, six hundred eighty thousand, eight hundred eight".