The square root of 618475290624 is 786432.
It is a Jordan-Polya number, since it can be written as (4!)2 ⋅ (2!)30.
618475290624 is a `hidden beast` number, since 6 + 1 + 8 + 4 + 7 + 5 + 2 + 9 + 0 + 624 = 666.
It is an ABA number since it can be written as A⋅BA, here for A=9, B=16.
It is a Duffinian number.
It is a nialpdrome in base 4, base 8 and base 16.
It is a zygodrome in base 8.
It is an unprimeable number.
Almost surely, 2618475290624 is an apocalyptic number.
618475290624 is a gapful number since it is divisible by the number (64) formed by its first and last digit.
618475290624 is the 786432-nd square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 618475290624
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
618475290624 is an frugal number, since it uses more digits than its factorization.
618475290624 is an evil number, because the sum of its binary digits is even.
The spelling of 618475290624 in words is "six hundred eighteen billion, four hundred seventy-five million, two hundred ninety thousand, six hundred twenty-four".