618478589643 has 8 divisors (see below), whose sum is σ = 824687240256. Its totient is φ = 412294499400.

The previous prime is 618478589633. The next prime is 618478589647. The reversal of 618478589643 is 346985874816.

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

It is not a de Polignac number, because 618478589643 - 2¹⁰ = 618478588619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (618478589647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6081253 + ... + 6182118.

It is an arithmetic number, because the mean of its divisors is an integer number (103085905032).

Almost surely, 2^618478589643 is an apocalyptic number.

618478589643 is a deficient number, since it is larger than the sum of its proper divisors (206208650613).

618478589643 is a wasteful number, since it uses less digits than its factorization.

618478589643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12280185.

The product of its digits is 278691840, while the sum is 69.

The spelling of 618478589643 in words is "six hundred eighteen billion, four hundred seventy-eight million, five hundred eighty-nine thousand, six hundred forty-three".