613647537242 has 8 divisors (see below), whose sum is σ = 920484267732. Its totient is φ = 306819448000.

The previous prime is 613647537233. The next prime is 613647537263. The reversal of 613647537242 is 242735746316.

It can be written as a sum of positive squares in 2 ways, for example, as 598780368481 + 14867168761 = 773809^2 + 121931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1979759 + ... + 2268642.

Almost surely, 2^613647537242 is an apocalyptic number.

613647537242 is a deficient number, since it is larger than the sum of its proper divisors (306836730490).

613647537242 is a wasteful number, since it uses less digits than its factorization.

613647537242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4320624.

The product of its digits is 5080320, while the sum is 50.

The spelling of 613647537242 in words is "six hundred thirteen billion, six hundred forty-seven million, five hundred thirty-seven thousand, two hundred forty-two".