1679189388794 has 4 divisors (see below), whose sum is σ = 2518784083194. Its totient is φ = 839594694396.

The previous prime is 1679189388769. The next prime is 1679189388803. The reversal of 1679189388794 is 4978839819761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 914461875625 + 764727513169 = 956275^2 + 874487^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419797347197 + ... + 419797347200.

Almost surely, 2^{1679189388794} is an apocalyptic number.

1679189388794 is a deficient number, since it is larger than the sum of its proper divisors (839594694400).

1679189388794 is an equidigital number, since it uses as much as digits as its factorization.

1679189388794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839594694399.

The product of its digits is 1316818944, while the sum is 80.

The spelling of 1679189388794 in words is "one trillion, six hundred seventy-nine billion, one hundred eighty-nine million, three hundred eighty-eight thousand, seven hundred ninety-four".