613717882061 has 4 divisors (see below), whose sum is σ = 614346048732. Its totient is φ = 613089715392.

The previous prime is 613717882031. The next prime is 613717882069. The reversal of 613717882061 is 160288717316.

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 456798905161 + 156918976900 = 675869^2 + 396130^2 .

It is a cyclic number.

It is not a de Polignac number, because 613717882061 - 2³⁰ = 612644140237 is a prime.

It is a super-2 number, since 2×613717882061² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613717882069) 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, 314081870 + ... + 314083823.

It is an arithmetic number, because the mean of its divisors is an integer number (153586512183).

Almost surely, 2^613717882061 is an apocalyptic number.

It is an amenable number.

613717882061 is a deficient number, since it is larger than the sum of its proper divisors (628166671).

613717882061 is an equidigital number, since it uses as much as digits as its factorization.

613717882061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628166670.

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 613717882061 in words is "six hundred thirteen billion, seven hundred seventeen million, eight hundred eighty-two thousand, sixty-one".