613243564640 has 192 divisors, whose sum is σ = 1733916119040. Its totient is φ = 200395345920.

The previous prime is 613243564639. The next prime is 613243564649. The reversal of 613243564640 is 46465342316.

It is a junction number, because it is equal to n+sod(n) for n = 613243564591 and 613243564600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613243564649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7196201 + ... + 7280919.

It is an arithmetic number, because the mean of its divisors is an integer number (9030813120).

Almost surely, 2^613243564640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613243564640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (866958059520).

613243564640 is an abundant number, since it is smaller than the sum of its proper divisors (1120672554400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613243564640 is a wasteful number, since it uses less digits than its factorization.

613243564640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85045 (or 85037 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 613243564640 in words is "six hundred thirteen billion, two hundred forty-three million, five hundred sixty-four thousand, six hundred forty".