42730264369 has 9 divisors (see below), whose sum is σ = 46272959649. Its totient is φ = 39440840400.

The previous prime is 42730264361. The next prime is 42730264387. The reversal of 42730264369 is 96346203724.

The square root of 42730264369 is 206713.

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

It can be written as a sum of positive squares in 4 ways, for example, as 4113298225 + 38616966144 = 64135^2 + 196512^2 .

It is not a de Polignac number, because 42730264369 - 2³ = 42730264361 is a prime.

It is a super-2 number, since 2×42730264369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42730264361) 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, 2679319 + ... + 2695219.

It is an arithmetic number, because the mean of its divisors is an integer number (5141439961).

Almost surely, 2^42730264369 is an apocalyptic number.

42730264369 is the 206713-rd square number.

42730264369 is the 103357-th centered octagonal number.

It is an amenable number.

42730264369 is a deficient number, since it is larger than the sum of its proper divisors (3542695280).

42730264369 is an frugal number, since it uses more digits than its factorization.

42730264369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31828 (or 15914 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 46.

The spelling of 42730264369 in words is "forty-two billion, seven hundred thirty million, two hundred sixty-four thousand, three hundred sixty-nine".