774916147868 has 24 divisors (see below), whose sum is σ = 1360353200640. Its totient is φ = 386245672560.

The previous prime is 774916147861. The next prime is 774916147871. The reversal of 774916147868 is 868741619477.

It is a junction number, because it is equal to n+sod(n) for n = 774916147798 and 774916147807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774916147861) 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, 1431413 + ... + 1897043.

It is an arithmetic number, because the mean of its divisors is an integer number (56681383360).

Almost surely, 2^774916147868 is an apocalyptic number.

It is an amenable number.

774916147868 is a deficient number, since it is larger than the sum of its proper divisors (585437052772).

774916147868 is a wasteful number, since it uses less digits than its factorization.

774916147868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466937 (or 466935 counting only the distinct ones).

The product of its digits is 113799168, while the sum is 68.

The spelling of 774916147868 in words is "seven hundred seventy-four billion, nine hundred sixteen million, one hundred forty-seven thousand, eight hundred sixty-eight".