1679212755985 has 8 divisors (see below), whose sum is σ = 2045130759936. Its totient is φ = 1323319902960.

The previous prime is 1679212755959. The next prime is 1679212756007. The reversal of 1679212755985 is 5895572129761.

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

It is not a de Polignac number, because 1679212755985 - 2¹⁵ = 1679212723217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1679212755985.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2506287361 + ... + 2506288030.

It is an arithmetic number, because the mean of its divisors is an integer number (255641344992).

Almost surely, 2^{1679212755985} is an apocalyptic number.

It is an amenable number.

1679212755985 is a deficient number, since it is larger than the sum of its proper divisors (365918003951).

1679212755985 is an equidigital number, since it uses as much as digits as its factorization.

1679212755985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012575463.

The product of its digits is 95256000, while the sum is 67.

The spelling of 1679212755985 in words is "one trillion, six hundred seventy-nine billion, two hundred twelve million, seven hundred fifty-five thousand, nine hundred eighty-five".