618604642 has 8 divisors (see below), whose sum is σ = 968250816. Its totient is φ = 295854372.

The previous prime is 618604639. The next prime is 618604643. The reversal of 618604642 is 246406816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×618604642³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (618604643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6723918 + ... + 6724009.

It is an arithmetic number, because the mean of its divisors is an integer number (121031352).

Almost surely, 2^618604642 is an apocalyptic number.

618604642 is a deficient number, since it is larger than the sum of its proper divisors (349646174).

618604642 is a wasteful number, since it uses less digits than its factorization.

618604642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13447952.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 618604642 is about 24871.7639503112. The cubic root of 618604642 is about 852.0617272903.

The spelling of 618604642 in words is "six hundred eighteen million, six hundred four thousand, six hundred forty-two".