4646378986789 has 8 divisors (see below), whose sum is σ = 4661939727000. Its totient is φ = 4630838737152.

The previous prime is 4646378986747. The next prime is 4646378986793. The reversal of 4646378986789 is 9876898736464.

It can be written as a sum of positive squares in 4 ways, for example, as 136774228900 + 4509604757889 = 369830^2 + 2123583^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4646378986789 - 2¹⁹ = 4646378462501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4646378986289) 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, 4668304 + ... + 5575465.

It is an arithmetic number, because the mean of its divisors is an integer number (582742465875).

Almost surely, 2^{4646378986789} is an apocalyptic number.

It is an amenable number.

4646378986789 is a deficient number, since it is larger than the sum of its proper divisors (15560740211).

4646378986789 is a wasteful number, since it uses less digits than its factorization.

4646378986789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10245287.

The product of its digits is 21069103104, while the sum is 85.

The spelling of 4646378986789 in words is "four trillion, six hundred forty-six billion, three hundred seventy-eight million, nine hundred eighty-six thousand, seven hundred eighty-nine".