1712979939985 has 16 divisors (see below), whose sum is σ = 2145000839040. Its totient is φ = 1310770236160.

The previous prime is 1712979939959. The next prime is 1712979939991. The reversal of 1712979939985 is 5899399792171.

It is not a de Polignac number, because 1712979939985 - 2⁵ = 1712979939953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5298726 + ... + 5612704.

It is an arithmetic number, because the mean of its divisors is an integer number (134062552440).

Almost surely, 2^{1712979939985} is an apocalyptic number.

It is an amenable number.

1712979939985 is a deficient number, since it is larger than the sum of its proper divisors (432020899055).

1712979939985 is a wasteful number, since it uses less digits than its factorization.

1712979939985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361448.

The product of its digits is 694416240, while the sum is 79.

The spelling of 1712979939985 in words is "one trillion, seven hundred twelve billion, nine hundred seventy-nine million, nine hundred thirty-nine thousand, nine hundred eighty-five".