618836278814768 has 80 divisors (see below), whose sum is σ = 1414645594982400. Its totient is φ = 256630690713600.

The previous prime is 618836278814717. The next prime is 618836278814867. The reversal of 618836278814768 is 867418872638816.

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, 19958288 + ... + 40447568.

It is an arithmetic number, because the mean of its divisors is an integer number (17683069937280).

Almost surely, 2^{618836278814768} is an apocalyptic number.

It is an amenable number.

618836278814768 is an abundant number, since it is smaller than the sum of its proper divisors (795809316167632).

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

618836278814768 is a wasteful number, since it uses less digits than its factorization.

618836278814768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20498026 (or 20498020 counting only the distinct ones).

The product of its digits is 8323596288, while the sum is 83.

The spelling of 618836278814768 in words is "six hundred eighteen trillion, eight hundred thirty-six billion, two hundred seventy-eight million, eight hundred fourteen thousand, seven hundred sixty-eight".