42723537229 has 2 divisors, whose sum is σ = 42723537230. Its totient is φ = 42723537228.

The previous prime is 42723537223. The next prime is 42723537239. The reversal of 42723537229 is 92273532724.

42723537229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42619538025 + 103999204 = 206445^2 + 10198^2 .

It is a cyclic number.

It is not a de Polignac number, because 42723537229 - 2³ = 42723537221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42723537221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21361768614 + 21361768615.

It is an arithmetic number, because the mean of its divisors is an integer number (21361768615).

Almost surely, 2^42723537229 is an apocalyptic number.

It is an amenable number.

42723537229 is a deficient number, since it is larger than the sum of its proper divisors (1).

42723537229 is an equidigital number, since it uses as much as digits as its factorization.

42723537229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 46.

It can be divided in two parts, 427235 and 37229, that added together give a palindrome (464464).

The spelling of 42723537229 in words is "forty-two billion, seven hundred twenty-three million, five hundred thirty-seven thousand, two hundred twenty-nine".