1712679985636 has 81 divisors (see below), whose sum is σ = 3242054291931. Its totient is φ = 791498131200.

The previous prime is 1712679985633. The next prime is 1712679985651. The reversal of 1712679985636 is 6365899762171.

The square root of 1712679985636 is 1308694.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 158030100900 + 1554649884736 = 397530^2 + 1246856^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1712679985633) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2714231041 + ... + 2714231671.

Almost surely, 2^{1712679985636} is an apocalyptic number.

1712679985636 is the 1308694-th square number.

It is an amenable number.

1712679985636 is a deficient number, since it is larger than the sum of its proper divisors (1529374306295).

1712679985636 is an frugal number, since it uses more digits than its factorization.

1712679985636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422 (or 711 counting only the distinct ones).

The product of its digits is 205752960, while the sum is 70.

The spelling of 1712679985636 in words is "one trillion, seven hundred twelve billion, six hundred seventy-nine million, nine hundred eighty-five thousand, six hundred thirty-six".