778475483668 has 12 divisors (see below), whose sum is σ = 1366044175552. Its totient is φ = 388177147800.

The previous prime is 778475483593. The next prime is 778475483671. The reversal of 778475483668 is 866384574877.

It is a self number, because there is not a number n which added to its sum of digits gives 778475483668.

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, 265146858 + ... + 265149793.

Almost surely, 2^778475483668 is an apocalyptic number.

It is an amenable number.

778475483668 is a deficient number, since it is larger than the sum of its proper divisors (587568691884).

778475483668 is a wasteful number, since it uses less digits than its factorization.

778475483668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530297022 (or 530297020 counting only the distinct ones).

The product of its digits is 1517322240, while the sum is 73.

The spelling of 778475483668 in words is "seven hundred seventy-eight billion, four hundred seventy-five million, four hundred eighty-three thousand, six hundred sixty-eight".