618473717760 has 160 divisors (see below), whose sum is σ = 1979139175200. Its totient is φ = 164924227584.

The previous prime is 618473717749. The next prime is 618473717791. The reversal of 618473717760 is 67717374816.

It is a Cunningham number, because it is equal to 786431²-1.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×618473717760² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 618473717760.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7824999 + ... + 7903641.

It is an arithmetic number, because the mean of its divisors is an integer number (12369619845).

Almost surely, 2^618473717760 is an apocalyptic number.

618473717760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618473717760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (989569587600).

618473717760 is an abundant number, since it is smaller than the sum of its proper divisors (1360665457440).

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

618473717760 is an frugal number, since it uses more digits than its factorization.

618473717760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78689 (or 78653 counting only the distinct ones).

The product of its (nonzero) digits is 8297856, while the sum is 57.

The spelling of 618473717760 in words is "six hundred eighteen billion, four hundred seventy-three million, seven hundred seventeen thousand, seven hundred sixty".