1070217901685 has 4 divisors (see below), whose sum is σ = 1284261482028. Its totient is φ = 856174321344.

The previous prime is 1070217901651. The next prime is 1070217901717. The reversal of 1070217901685 is 5861097120701.

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

It can be written as a sum of positive squares in 2 ways, for example, as 242259855601 + 827958046084 = 492199^2 + 909922^2 .

It is a cyclic number.

It is not a de Polignac number, because 1070217901685 - 2¹² = 1070217897589 is a prime.

It is a super-2 number, since 2×1070217901685² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107021790164 + ... + 107021790173.

It is an arithmetic number, because the mean of its divisors is an integer number (321065370507).

Almost surely, 2^{1070217901685} is an apocalyptic number.

It is an amenable number.

1070217901685 is a deficient number, since it is larger than the sum of its proper divisors (214043580343).

1070217901685 is an equidigital number, since it uses as much as digits as its factorization.

1070217901685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214043580342.

The product of its (nonzero) digits is 211680, while the sum is 47.

The spelling of 1070217901685 in words is "one trillion, seventy billion, two hundred seventeen million, nine hundred one thousand, six hundred eighty-five".