1678313304445 has 8 divisors (see below), whose sum is σ = 2014317179136. Its totient is φ = 1342423167696.

The previous prime is 1678313304377. The next prime is 1678313304457. The reversal of 1678313304445 is 5444033138761.

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 1678313304445 - 2³⁵ = 1643953566077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28402017 + ... + 28461046.

It is an arithmetic number, because the mean of its divisors is an integer number (251789647392).

Almost surely, 2^{1678313304445} is an apocalyptic number.

It is an amenable number.

1678313304445 is a deficient number, since it is larger than the sum of its proper divisors (336003874691).

1678313304445 is an equidigital number, since it uses as much as digits as its factorization.

1678313304445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56868971.

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 1678313304445 in words is "one trillion, six hundred seventy-eight billion, three hundred thirteen million, three hundred four thousand, four hundred forty-five".