30805419369169 has 9 divisors (see below), whose sum is σ = 31233602929179. Its totient is φ = 30383027704080.

The previous prime is 30805419369143. The next prime is 30805419369181. The reversal of 30805419369169 is 96196391450803.

It is a happy number.

The square root of 30805419369169 is 5550263.

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

It can be written as a sum of positive squares in only one way, i.e., 17486656707025 + 13318762662144 = 4181705^2 + 3649488^2 .

It is not a de Polignac number, because 30805419369169 - 2³³ = 30796829434577 is a prime.

It is a super-2 number, since 2×30805419369169² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30805419369169.

It is not an unprimeable number, because it can be changed into a prime (30805419309169) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 405131184 + ... + 405207214.

Almost surely, 2^{30805419369169} is an apocalyptic number.

30805419369169 is the 5550263-rd square number.

30805419369169 is the 2775132-nd centered octagonal number.

It is an amenable number.

30805419369169 is a deficient number, since it is larger than the sum of its proper divisors (428183560010).

30805419369169 is an frugal number, since it uses more digits than its factorization.

30805419369169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152208 (or 76104 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 64.

The spelling of 30805419369169 in words is "thirty trillion, eight hundred five billion, four hundred nineteen million, three hundred sixty-nine thousand, one hundred sixty-nine".