2305347245569 has 3 divisors (see below), whose sum is σ = 2305348763907. Its totient is φ = 2305345727232.

The previous prime is 2305347245527. The next prime is 2305347245599. The reversal of 2305347245569 is 9655427435032.

The square root of 2305347245569 is 1518337.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1738771890625 + 566575354944 = 1318625^2 + 752712^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2305347245569 is a prime.

It is a super-2 number, since 2×2305347245569² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2305347245599) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 759169 + ... + 2277505.

It is an arithmetic number, because the mean of its divisors is an integer number (768449587969).

Almost surely, 2^{2305347245569} is an apocalyptic number.

2305347245569 is the 1518337-th square number.

2305347245569 is the 759169-th centered octagonal number.

It is an amenable number.

2305347245569 is a deficient number, since it is larger than the sum of its proper divisors (1518338).

2305347245569 is an frugal number, since it uses more digits than its factorization.

2305347245569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036674 (or 1518337 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 55.

The spelling of 2305347245569 in words is "two trillion, three hundred five billion, three hundred forty-seven million, two hundred forty-five thousand, five hundred sixty-nine".