43259967627361 has 9 divisors (see below), whose sum is σ = 44461005739731. Its totient is φ = 42090542532792.

The previous prime is 43259967627323. The next prime is 43259967627433. The reversal of 43259967627361 is 16372676995234.

The square root of 43259967627361 is 6577231.

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., 38709613107025 + 4550354520336 = 6221705^2 + 2133156^2 .

It is not a de Polignac number, because 43259967627361 - 2⁴⁵ = 8075595538529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43259967627301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 243268666 + ... + 243446428.

It is an arithmetic number, because the mean of its divisors is an integer number (4940111748859).

Almost surely, 2^{43259967627361} is an apocalyptic number.

43259967627361 is the 6577231-st square number.

43259967627361 is the 3288616-th centered octagonal number.

It is an amenable number.

43259967627361 is a deficient number, since it is larger than the sum of its proper divisors (1201038112370).

43259967627361 is an frugal number, since it uses more digits than its factorization.

43259967627361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355600 (or 177800 counting only the distinct ones).

The product of its digits is 617258880, while the sum is 70.

The spelling of 43259967627361 in words is "forty-three trillion, two hundred fifty-nine billion, nine hundred sixty-seven million, six hundred twenty-seven thousand, three hundred sixty-one".