42752819317 has 6 divisors (see below), whose sum is σ = 46042300598. Its totient is φ = 39463452744.

The previous prime is 42752819299. The next prime is 42752819383. The reversal of 42752819317 is 71391825724.

It can be written as a sum of positive squares in only one way, i.e., 29598105681 + 13154713636 = 172041^2 + 114694^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42752819317 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 (42752819917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 716838 + ... + 774184.

Almost surely, 2^42752819317 is an apocalyptic number.

It is an amenable number.

42752819317 is a deficient number, since it is larger than the sum of its proper divisors (3289481281).

42752819317 is an frugal number, since it uses more digits than its factorization.

42752819317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114707 (or 57360 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The spelling of 42752819317 in words is "forty-two billion, seven hundred fifty-two million, eight hundred nineteen thousand, three hundred seventeen".