618019910816 has 96 divisors (see below), whose sum is σ = 1518308426880. Its totient is φ = 240572620800.

The previous prime is 618019910779. The next prime is 618019910857.

618019910816 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×618019910816² (a number of 24 digits) contains 22 as substring.

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, 2670776 + ... + 2892936.

It is an arithmetic number, because the mean of its divisors is an integer number (15815712780).

Almost surely, 2^618019910816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618019910816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (759154213440).

618019910816 is an abundant number, since it is smaller than the sum of its proper divisors (900288516064).

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

618019910816 is a wasteful number, since it uses less digits than its factorization.

618019910816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223318 (or 223310 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 50.

The spelling of 618019910816 in words is "six hundred eighteen billion, nineteen million, nine hundred ten thousand, eight hundred sixteen".