1679629656843 has 12 divisors (see below), whose sum is σ = 2515988457528. Its totient is φ = 1119753104400.

The previous prime is 1679629656821. The next prime is 1679629656851. The reversal of 1679629656843 is 3486569269761.

1679629656843 is a `hidden beast` number, since 16 + 7 + 9 + 6 + 2 + 9 + 6 + 568 + 43 = 666.

It is not a de Polignac number, because 1679629656843 - 2⁵ = 1679629656811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1679629616843) 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 11 ways as a sum of consecutive naturals, for example, 3456027858 + ... + 3456028343.

It is an arithmetic number, because the mean of its divisors is an integer number (209665704794).

Almost surely, 2^{1679629656843} is an apocalyptic number.

1679629656843 is a deficient number, since it is larger than the sum of its proper divisors (836358800685).

1679629656843 is an frugal number, since it uses more digits than its factorization.

1679629656843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6912056216 (or 6912056204 counting only the distinct ones).

The product of its digits is 705438720, while the sum is 72.

The spelling of 1679629656843 in words is "one trillion, six hundred seventy-nine billion, six hundred twenty-nine million, six hundred fifty-six thousand, eight hundred forty-three".