613389868 has 48 divisors (see below), whose sum is σ = 1323784000. Its totient is φ = 242175744.

The previous prime is 613389853. The next prime is 613389911. The reversal of 613389868 is 868983316.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221758 + ... + 224506.

Almost surely, 2^613389868 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 613389868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661892000).

613389868 is an abundant number, since it is smaller than the sum of its proper divisors (710394132).

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

613389868 is a wasteful number, since it uses less digits than its factorization.

613389868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3386 (or 3384 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The square root of 613389868 is about 24766.7088649259. The cubic root of 613389868 is about 849.6607033344.

The spelling of 613389868 in words is "six hundred thirteen million, three hundred eighty-nine thousand, eight hundred sixty-eight".