60985784209 has 9 divisors (see below), whose sum is σ = 70944657897. Its totient is φ = 52272047604.

The previous prime is 60985784203. The next prime is 60985784213. The reversal of 60985784209 is 90248758906.

The square root of 60985784209 is 246953.

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

It is not a de Polignac number, because 60985784209 - 2⁵ = 60985784177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60985784203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1711032 + ... + 1746310.

Almost surely, 2^60985784209 is an apocalyptic number.

60985784209 is the 246953-rd square number.

60985784209 is the 123477-th centered octagonal number.

It is an amenable number.

60985784209 is a deficient number, since it is larger than the sum of its proper divisors (9958873688).

60985784209 is an frugal number, since it uses more digits than its factorization.

60985784209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70572 (or 35286 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 60985784209 in words is "sixty billion, nine hundred eighty-five million, seven hundred eighty-four thousand, two hundred nine".