618840568 has 16 divisors (see below), whose sum is σ = 1162291680. Its totient is φ = 308896128.

The previous prime is 618840559. The next prime is 618840571. The reversal of 618840568 is 865048816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60480 + ... + 69967.

It is an arithmetic number, because the mean of its divisors is an integer number (72643230).

Almost surely, 2^618840568 is an apocalyptic number.

It is an amenable number.

618840568 is a deficient number, since it is larger than the sum of its proper divisors (543451112).

618840568 is a wasteful number, since it uses less digits than its factorization.

618840568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131046 (or 131042 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 46.

The square root of 618840568 is about 24876.5063463502. The cubic root of 618840568 is about 852.1700344659.

The spelling of 618840568 in words is "six hundred eighteen million, eight hundred forty thousand, five hundred sixty-eight".