42536175049 has 9 divisors (see below), whose sum is σ = 43959179559. Its totient is φ = 41157853080.

The previous prime is 42536175043. The next prime is 42536175089. The reversal of 42536175049 is 94057163524.

It is a happy number.

The square root of 42536175049 is 206243.

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., 1029447225 + 41506727824 = 32085^2 + 203732^2 .

It is not a de Polignac number, because 42536175049 - 2²⁵ = 42502620617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42536175043) 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, 6390207 + ... + 6396859.

Almost surely, 2^42536175049 is an apocalyptic number.

42536175049 is the 206243-rd square number.

42536175049 is the 103122-nd centered octagonal number.

It is an amenable number.

42536175049 is a deficient number, since it is larger than the sum of its proper divisors (1423004510).

42536175049 is an frugal number, since it uses more digits than its factorization.

42536175049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13368 (or 6684 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 42536175049 in words is "forty-two billion, five hundred thirty-six million, one hundred seventy-five thousand, forty-nine".