42730608229 has 4 divisors (see below), whose sum is σ = 43153683660. Its totient is φ = 42307532800.

The previous prime is 42730608199. The next prime is 42730608287. The reversal of 42730608229 is 92280603724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19655479204 + 23075129025 = 140198^2 + 151905^2 .

It is a cyclic number.

It is not a de Polignac number, because 42730608229 - 2¹⁹ = 42730083941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42730608299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211537564 + ... + 211537765.

It is an arithmetic number, because the mean of its divisors is an integer number (10788420915).

Almost surely, 2^42730608229 is an apocalyptic number.

It is an amenable number.

42730608229 is a deficient number, since it is larger than the sum of its proper divisors (423075431).

42730608229 is a wasteful number, since it uses less digits than its factorization.

42730608229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423075430.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 42730608229 in words is "forty-two billion, seven hundred thirty million, six hundred eight thousand, two hundred twenty-nine".