613368307520 has 42 divisors (see below), whose sum is σ = 1460616644166. Its totient is φ = 245341719040.

The previous prime is 613368307507. The next prime is 613368307589. The reversal of 613368307520 is 25703863316.

It can be written as a sum of positive squares in 3 ways, for example, as 440704788736 + 172663518784 = 663856^2 + 415528^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13988030 + ... + 14031810.

Almost surely, 2^613368307520 is an apocalyptic number.

It is an amenable number.

613368307520 is an abundant number, since it is smaller than the sum of its proper divisors (847248336646).

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

613368307520 is an frugal number, since it uses more digits than its factorization.

613368307520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87579 (or 43788 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 613368307520 in words is "six hundred thirteen billion, three hundred sixty-eight million, three hundred seven thousand, five hundred twenty".