618585996 has 72 divisors (see below), whose sum is σ = 1690381056. Its totient is φ = 175543200.

The previous prime is 618585977. The next prime is 618586039. The reversal of 618585996 is 699585816.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85305 + ... + 92271.

Almost surely, 2^618585996 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 618585996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (845190528).

618585996 is an abundant number, since it is smaller than the sum of its proper divisors (1071795060).

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

618585996 is a wasteful number, since it uses less digits than its factorization.

618585996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7139 (or 7130 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 57.

The square root of 618585996 is about 24871.3891047525. The cubic root of 618585996 is about 852.0531662474.

The spelling of 618585996 in words is "six hundred eighteen million, five hundred eighty-five thousand, nine hundred ninety-six".