80209603369 has 9 divisors (see below), whose sum is σ = 93307355037. Its totient is φ = 68749389324.

The previous prime is 80209603367. The next prime is 80209603373. The reversal of 80209603369 is 96330690208.

It is a happy number.

The square root of 80209603369 is 283213.

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

It is not a de Polignac number, because 80209603369 - 2¹ = 80209603367 is a prime.

It is a super-2 number, since 2×80209603369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80209603363) 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, 1962262 + ... + 2002720.

It is an arithmetic number, because the mean of its divisors is an integer number (10367483893).

Almost surely, 2^80209603369 is an apocalyptic number.

80209603369 is the 283213-rd square number.

80209603369 is the 141607-th centered octagonal number.

It is an amenable number.

80209603369 is a deficient number, since it is larger than the sum of its proper divisors (13097751668).

80209603369 is an frugal number, since it uses more digits than its factorization.

80209603369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80932 (or 40466 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 80209603369 in words is "eighty billion, two hundred nine million, six hundred three thousand, three hundred sixty-nine".