2271359452609 has 9 divisors (see below), whose sum is σ = 2459540622819. Its totient is φ = 2096621409480.

The previous prime is 2271359452493. The next prime is 2271359452709. The reversal of 2271359452609 is 9062549531722.

The square root of 2271359452609 is 1507103.

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., 335999919025 + 1935359533584 = 579655^2 + 1391172^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2271359452609 is a prime.

It is a super-2 number, since 2×2271359452609² (a number of 26 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 2271359452609.

It is not an unprimeable number, because it can be changed into a prime (2271359452409) 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, 19534374 + ... + 19650304.

Almost surely, 2^{2271359452609} is an apocalyptic number.

2271359452609 is the 1507103-rd square number.

2271359452609 is the 753552-nd centered octagonal number.

It is an amenable number.

2271359452609 is a deficient number, since it is larger than the sum of its proper divisors (188181170210).

2271359452609 is an frugal number, since it uses more digits than its factorization.

2271359452609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231888 (or 115944 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 2271359452609 in words is "two trillion, two hundred seventy-one billion, three hundred fifty-nine million, four hundred fifty-two thousand, six hundred nine".