43492165229881 has 9 divisors (see below), whose sum is σ = 45465503312719. Its totient is φ = 41601056437336.

The previous prime is 43492165229867. The next prime is 43492165229917. The reversal of 43492165229881 is 18892256129434.

The square root of 43492165229881 is 6594859.

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., 11814584445225 + 31677580784656 = 3437235^2 + 5628284^2 .

It is not a de Polignac number, because 43492165229881 - 2⁹ = 43492165229369 is a prime.

It is a super-2 number, since 2×43492165229881² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43492165229801) 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, 151538391 + ... + 151825123.

Almost surely, 2^{43492165229881} is an apocalyptic number.

43492165229881 is the 6594859-th square number.

43492165229881 is the 3297430-th centered octagonal number.

It is an amenable number.

43492165229881 is a deficient number, since it is larger than the sum of its proper divisors (1973338082838).

43492165229881 is an frugal number, since it uses more digits than its factorization.

43492165229881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573512 (or 286756 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 64.

The spelling of 43492165229881 in words is "forty-three trillion, four hundred ninety-two billion, one hundred sixty-five million, two hundred twenty-nine thousand, eight hundred eighty-one".