613347638732556 has 576 divisors, whose sum is σ = 1845787377595392. Its totient is φ = 157008638932992.

The previous prime is 613347638732531. The next prime is 613347638732579. The reversal of 613347638732556 is 655237836743316.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 307134520150 + ... + 307134522146.

It is an arithmetic number, because the mean of its divisors is an integer number (3204491974992).

Almost surely, 2^{613347638732556} 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 613347638732556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (922893688797696).

613347638732556 is an abundant number, since it is smaller than the sum of its proper divisors (1232439738862836).

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

613347638732556 is a wasteful number, since it uses less digits than its factorization.

613347638732556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158 (or 4149 counting only the distinct ones).

The product of its digits is 1371686400, while the sum is 69.

The spelling of 613347638732556 in words is "six hundred thirteen trillion, three hundred forty-seven billion, six hundred thirty-eight million, seven hundred thirty-two thousand, five hundred fifty-six".