227081481823729 has 49 divisors (see below), whose sum is σ = 259671875249263. Its totient is φ = 198581376817512.

The previous prime is 227081481823727. The next prime is 227081481823733. The reversal of 227081481823729 is 927328184180722.

The square root of 227081481823729 is 15069223.

The cubic root of 227081481823729 is 61009.

It is a perfect power (a square, a cube, a 6-th power), and thus also a powerful number.

It can be written as a sum of positive squares in 3 ways, for example, as 194827578544225 + 32253903279504 = 13958065^2 + 5679252^2 .

It is not a de Polignac number, because 227081481823729 - 2¹ = 227081481823727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227081481823727) by changing a digit.

It is a polite number, since it can be written in 48 ways as a sum of consecutive naturals, for example, 11951656938082 + ... + 11951656938100.

Almost surely, 2^{227081481823729} is an apocalyptic number.

227081481823729 is the 15069223-rd square number.

227081481823729 is the 7534612-nd centered octagonal number.

It is an amenable number.

227081481823729 is a deficient number, since it is larger than the sum of its proper divisors (32590393425534).

227081481823729 is an frugal number, since it uses more digits than its factorization.

227081481823729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 32 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 64.

The spelling of 227081481823729 in words is "two hundred twenty-seven trillion, eighty-one billion, four hundred eighty-one million, eight hundred twenty-three thousand, seven hundred twenty-nine".