30855769711209 has 27 divisors (see below), whose sum is σ = 46054318424439. Its totient is φ = 19906614912960.

The previous prime is 30855769711187. The next prime is 30855769711253. The reversal of 30855769711209 is 90211796755803.

The square root of 30855769711209 is 5554797.

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

30855769711209 is a `hidden beast` number, since 3 + 0 + 8 + 557 + 6 + 9 + 71 + 1 + 2 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13651524871209 + 17204244840000 = 3694797^2 + 4147800^2 .

It is not a de Polignac number, because 30855769711209 - 2²¹ = 30855767614057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30855769715209) 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, 516566257 + ... + 516625985.

Almost surely, 2^{30855769711209} is an apocalyptic number.

30855769711209 is the 5554797-th square number.

30855769711209 is the 2777399-th centered octagonal number.

It is an amenable number.

30855769711209 is a deficient number, since it is larger than the sum of its proper divisors (15198548713230).

30855769711209 is an frugal number, since it uses more digits than its factorization.

30855769711209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119526 (or 59763 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 63.

The spelling of 30855769711209 in words is "thirty trillion, eight hundred fifty-five billion, seven hundred sixty-nine million, seven hundred eleven thousand, two hundred nine".