618793397816 has 64 divisors (see below), whose sum is σ = 1270848476160. Its totient is φ = 280129696000.

The previous prime is 618793397797. The next prime is 618793397857.

618793397816 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62581625 + ... + 62591511.

It is an arithmetic number, because the mean of its divisors is an integer number (19857007440).

Almost surely, 2^618793397816 is an apocalyptic number.

It is an amenable number.

618793397816 is an abundant number, since it is smaller than the sum of its proper divisors (652055078344).

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

618793397816 is a wasteful number, since it uses less digits than its factorization.

618793397816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12716 (or 12712 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 68.

The spelling of 618793397816 in words is "six hundred eighteen billion, seven hundred ninety-three million, three hundred ninety-seven thousand, eight hundred sixteen".