778375453612 has 12 divisors (see below), whose sum is σ = 1368157737240. Its totient is φ = 387473242976.

The previous prime is 778375453571. The next prime is 778375453633. The reversal of 778375453612 is 216354573877.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428619937 + ... + 428621752.

It is an arithmetic number, because the mean of its divisors is an integer number (114013144770).

Almost surely, 2^778375453612 is an apocalyptic number.

It is an amenable number.

778375453612 is a deficient number, since it is larger than the sum of its proper divisors (589782283628).

778375453612 is a wasteful number, since it uses less digits than its factorization.

778375453612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857241920 (or 857241918 counting only the distinct ones).

The product of its digits is 29635200, while the sum is 58.

The spelling of 778375453612 in words is "seven hundred seventy-eight billion, three hundred seventy-five million, four hundred fifty-three thousand, six hundred twelve".