612648836076078 has 24 divisors (see below), whose sum is σ = 1327406274353016. Its totient is φ = 204216207483600.

The previous prime is 612648836076023. The next prime is 612648836076089. The reversal of 612648836076078 is 870670638846216.

It is a happy number.

612648836076078 is a `hidden beast` number, since 6 + 1 + 2 + 6 + 4 + 8 + 8 + 3 + 6 + 0 + 7 + 607 + 8 = 666.

612648836076078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 612648836075997 and 612648836076015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83777293 + ... + 90796103.

It is an arithmetic number, because the mean of its divisors is an integer number (55308594764709).

Almost surely, 2^{612648836076078} is an apocalyptic number.

612648836076078 is an abundant number, since it is smaller than the sum of its proper divisors (714757438276938).

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

612648836076078 is a wasteful number, since it uses less digits than its factorization.

612648836076078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11868080 (or 11868077 counting only the distinct ones).

The product of its (nonzero) digits is 780337152, while the sum is 72.

The spelling of 612648836076078 in words is "six hundred twelve trillion, six hundred forty-eight billion, eight hundred thirty-six million, seventy-six thousand, seventy-eight".