1078861584646 has 8 divisors (see below), whose sum is σ = 1644821760384. Its totient is φ = 530587664520.

The previous prime is 1078861584643. The next prime is 1078861584751. The reversal of 1078861584646 is 6464851688701.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078861584643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4421563750 + ... + 4421563993.

It is an arithmetic number, because the mean of its divisors is an integer number (205602720048).

Almost surely, 2^{1078861584646} is an apocalyptic number.

1078861584646 is a deficient number, since it is larger than the sum of its proper divisors (565960175738).

1078861584646 is an equidigital number, since it uses as much as digits as its factorization.

1078861584646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8843127806.

The product of its (nonzero) digits is 61931520, while the sum is 64.

The spelling of 1078861584646 in words is "one trillion, seventy-eight billion, eight hundred sixty-one million, five hundred eighty-four thousand, six hundred forty-six".