1679063870845 has 8 divisors (see below), whose sum is σ = 2018142251064. Its totient is φ = 1341074025984.

The previous prime is 1679063870833. The next prime is 1679063870849. The reversal of 1679063870845 is 5480783609761.

It can be written as a sum of positive squares in 4 ways, for example, as 8075897956 + 1670987972889 = 89866^2 + 1292667^2 .

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 1679063870845 - 2⁷ = 1679063870717 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 (1679063870849) 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, 272130444 + ... + 272136613.

It is an arithmetic number, because the mean of its divisors is an integer number (252267781383).

Almost surely, 2^{1679063870845} is an apocalyptic number.

It is an amenable number.

1679063870845 is a deficient number, since it is larger than the sum of its proper divisors (339078380219).

1679063870845 is an equidigital number, since it uses as much as digits as its factorization.

1679063870845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544267679.

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 1679063870845 in words is "one trillion, six hundred seventy-nine billion, sixty-three million, eight hundred seventy thousand, eight hundred forty-five".