618689398594176 has 4608 divisors, whose sum is σ = 2484782073446400. Its totient is φ = 145953703526400.

The previous prime is 618689398594159. The next prime is 618689398594177. The reversal of 618689398594176 is 671495893986816.

It is a happy number.

618689398594176 is a `hidden beast` number, since 6 + 1 + 8 + 6 + 8 + 9 + 3 + 9 + 8 + 594 + 1 + 7 + 6 = 666.

It is a super-2 number, since 2×618689398594176² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (618689398594177) by changing a digit.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 3418173472806 + ... + 3418173472986.

It is an arithmetic number, because the mean of its divisors is an integer number (539232220800).

Almost surely, 2^{618689398594176} 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 618689398594176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1242391036723200).

618689398594176 is an abundant number, since it is smaller than the sum of its proper divisors (1866092674852224).

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

618689398594176 is a wasteful number, since it uses less digits than its factorization.

618689398594176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 446 counting only the distinct ones).

The product of its digits is 33861058560, while the sum is 90.

The spelling of 618689398594176 in words is "six hundred eighteen trillion, six hundred eighty-nine billion, three hundred ninety-eight million, five hundred ninety-four thousand, one hundred seventy-six".