613640606437 has 16 divisors (see below), whose sum is σ = 684133344000. Its totient is φ = 546987409920.

The previous prime is 613640606413. The next prime is 613640606483. The reversal of 613640606437 is 734606046316.

It is a cyclic number.

It is not a de Polignac number, because 613640606437 - 2¹⁹ = 613640082149 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 (613640606237) 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 15 ways as a sum of consecutive naturals, for example, 838612 + ... + 1389442.

It is an arithmetic number, because the mean of its divisors is an integer number (42758334000).

Almost surely, 2^613640606437 is an apocalyptic number.

It is an amenable number.

613640606437 is a deficient number, since it is larger than the sum of its proper divisors (70492737563).

613640606437 is a wasteful number, since it uses less digits than its factorization.

613640606437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554316.

The product of its (nonzero) digits is 1306368, while the sum is 46.

The spelling of 613640606437 in words is "six hundred thirteen billion, six hundred forty million, six hundred six thousand, four hundred thirty-seven".