42672727613 has 4 divisors (see below), whose sum is σ = 42737286108. Its totient is φ = 42608169120.

The previous prime is 42672727597. The next prime is 42672727621. The reversal of 42672727613 is 31672727624.

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 15045966244 + 27626761369 = 122662^2 + 166213^2 .

It is a cyclic number.

It is not a de Polignac number, because 42672727613 - 2⁴ = 42672727597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42672727213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32278256 + ... + 32279577.

It is an arithmetic number, because the mean of its divisors is an integer number (10684321527).

Almost surely, 2^42672727613 is an apocalyptic number.

It is an amenable number.

42672727613 is a deficient number, since it is larger than the sum of its proper divisors (64558495).

42672727613 is an equidigital number, since it uses as much as digits as its factorization.

42672727613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64558494.

The product of its digits is 1185408, while the sum is 47.

The spelling of 42672727613 in words is "forty-two billion, six hundred seventy-two million, seven hundred twenty-seven thousand, six hundred thirteen".